How can make my confidence grow up?

A piece of advice from my psych. teacher about anxiety comes to mind. - You're not anxious. Convince yourself that those nerves and energy means that you're excited instead. You're excited to give that speech! You're excited to have family over! You're excited to perform in front of your boss. The reason is that with all of the chances of extreme failure that your mind may produce, there is also potential for great success in each of those things. - Telling yourself that you're excited helps take the edge off, hence helps you to perform better. When you perform better, your confidence rises.

Another thing that really helps me calm my nerves is to write down what exactly I'm afraid will happen; get as in touch with your fears as possible. Put them in front of you physically. You can them rip them or burn them, but the great part for me is that you realize how silly some of these fears are and it takes some of the pressure off.

Hope this helps! Sending positive vibes your way!

well, if you have the time you should consider counseling! I'm the exact same as you. There's also plenty of easy tips and tricks you can find on Google! Good luck. You should be confident no matter what! :)

You should go to a Christian church. Jesus died for you and I. You can either accept and believe that and go to heaven or deny it and go to hell. The option is really simple. I invite you to come to a church and learn about God's word.