Have you ever felt really guilty about a mistake you've made?

Yes, I've felt really guilty about a mistake I've made. All you can do is apologize and repent. The guilt goes away with time and prayer. You should express to God how you're feeling, and ask Him to show through scriptures what to do, and how He feels about you. For the self harm, you should get a counselor. That's actually a more serious issue that it seems on the surface. Icebergs are ALWAYS bigger than they look, and they sink the unsinkable.

Seek the LORD while He may be found, call upon Him while He is near. Let the wicked forsake his way, and the unrighteous man his thoughts; let him return to the LORD, and He will have mercy on him; and to our God, for He WILL ABUNDANTLY pardon (Isaiah 55:6-7).

Behold, the LORD's hand is not shortened that it cannot save; nor His ear heavy, that it cannot hear. But your iniquities have separated your from your God; and your sins have hidden His face from you, so that He will not hear (Isaiah 59:1-2).

Therefore He is able to save to the uttermost those who come to God through Him (Jesus), since He always lives to make intercession for them (Hebrews 7:25).

The Lord is not slack concerning His promise, as some count slackness, but is longsuffering toward us, not willing that any should perish but that all should come to repentance (2 Peter 3:9).

If we confess our sins, He is faithful and just to forgive us our sins and to cleanse us from ALL unrighteousness (1 John 1:9).

Do not fear any of those things which you are about to suffer. Indeed, the devil is about to throw some of you into prison, that you may be tested, and you will have tribulation 10 days. Be faithful unto death, and I will give you the crown of life (Revelation 2:10).

He who overcomes shall not be hurt by the second death (Revelation 2:11).

Repent and be baptized in the name of Jesus Christ for the remission of sin; and you shall receive the gift of the Holy Spirit (Acts 2:38).

Go and sin no more (John 8:11).

Fear God and keep His commandments, for this is the whole duty of man. For God will bring every work into judgment with every secret thing, whether it be good or whether it be evil (see Ecclesiastes 12:13-14).

Martin Luther experienced a similar guilt and depression, but eventually realized that feelings can be deceptive when he had this epiphany: the just SHALL live by faith (Habakkuk 2:4, Romans 1:17, Hebrews 10:38).

You would like this guy's preaching --> http://amazingdiscoveries.tv/c/15/Radar_for_Eterni...

He sticks to the truth of the Word of God, discussing prophecy, Jesus as Messiah, and God's great ability and great desire to save us.

Don't be so hard on yourself. :)

Additionally, my account is set up to receive messages, so you can hit me up there for other questions.

EDIT

I'm watching this video right now, and it made me think of you; you might appreciate it --> http://amazingdiscoveries.tv/media/733/04-escaping...

The people that really ought to feel guilty never tend to be, and the people who are least deserving to be shamed and blamed, tend to heap it on themselves. There are plenty of psychological abusers who will exploit a conscientious person as you seem to be. It has all been a misguided attempt to find love and affection. You're not a criminal, just a little messed up, as we all happen to be. I do not think you need to worry so much about these things because God is in your life regardless, and you speak to him, so He knows you are doing all that you can/trying your very best even if it is all a little bit awry.

Keep away from abusers.

I was in an abusive marriage once.

This group helped me so much- http://www.dailystrength.org/c/Physical-Emotional-...

You should learn about what red flags are, how to spot abusers early, how to deal with abusers etc.

When you learn these things and how to avoid getting in this situation again you should feel better because it will not only help with preventing relationship abuse but abuse from friends and other people.

GOD has someone picked out for you, and when the time is right He will bring you two together. There will be no mistaking that this is the person for you and it will feel right. In the mean time, to relieve some pressure and stress on us we must put looking for a mate aside and focus on our relationship with GOD and YAHUSHUA (Jesus Hebrew name)

You didn't ruin your only chance.

Matthew 18:21-22 "Then Peter came and said to Him, “Lord, how often shall my brother sin against me and I forgive him? Up to seven times?” Jesus said to him, “I do not say to you, up to seven times, but up to seventy times seven."

Luke 6:37 “Judge not, and you will not be judged; condemn not, and you will not be condemned; forgive, and you will be forgiven;

http://www.openbible.info/topics/forgiving_one_ano...

You feel guilty and worthless because that is one of the symptoms of being abused for so long. You did make a mistake but since you have confessed that, God has forgiven you. You do need to see a professional therapist and probably some antidepressant medication to help you feel better until your therapist has helped you resolve some of your issues. I have done worse sins than you and have been forgiven for them.

My mom has this verse where she can always see it at her home.

Jeremiah 29:11

I know the plans I have in mind for you, declares the Lord; they are plans for peace, not disaster, to give you a future filled with hope.

There are more in different places. And if you read the whole chapter, or book.., maybe it would seem out of context.., but my mom does not think that.

Do you trust my mom?

I do.

Yes, you do need religion, but yes, you could also benefit from counseling. This is not an insult. many of those that answered your question could benefit from counseling. You should not get into another relationship until you figure out what is going on with you, that you would get into and stay in an abusive relationship. Of course there is low self esteem. Maybe you were beaten as a kid by your parents, so you think being hit by someone who loves you is normal. Maybe your parents told you they beat you because they loved you. No, they hit you because they were flawed fallible parents. Hitting kids is from frustration or not knowing other options, not from love.

Romans 10:9 If you declare with your mouth, “Jesus is Lord,” and believe in your heart that God raised him from the dead, you will be saved. 10 For it is with your heart that you believe and are justified, and it is with your mouth that you profess your faith and are saved.

Ephesians 5:28 In this same way, husbands ought to love their wives as their own bodies. He who loves his wife loves himself. 29 After all, no one ever hated their own body, but they feed and care for their body, just as Christ does the church— 30 for we are members of his body.

Ephesians 5:33 However, each one of you also must love his wife as he loves himself, and the wife must respect her husband.

Yes. Everyone makes mistakes. Some people make tiny mistakes, other make big ones. What really matter is that you learn. I know it sounds so cliche. But that's what's important. I wish I could help. I do not know you personally enough. I know you should pray and give yourself to the Lord.

Firstly you have to remember we are not perfect, we are all sinners and all make mistakes. Jesus said "those who have not sinned cast the first stone" God knows we will mistakes and we all do things in our lives we regret that is why Jesus gave is the sacrament of confession.

and so you have confessed......and now you will feel better

I try not to hold onto guilt, nor forget the past, lest I become doomed to repeat it.

You don't need religion....you need counselling.

Seriously.

You need to re-learn how to see yourself and others in a healthy, self-nurturing way. Religion will only heap on the guilt and shame.