Is St. Johns Wort good for bad anxiety?

No, it's an herb so it's very mild and won't help anxiety at all. If you’re a teen, remember that the teen years are the absolute worst time of your life. I'm surprised any of us survive it. You are struggling with so much stress, pressures, changes... Your body and mind are trying to cope but ... it's hard.

The brain is a very complicated and delicate thing. It can get messed up and be unable to produce any or enough serotonin. This is called a chemical imbalance which is easily treated, very common and nothing to be ashamed of.

It can cause depression, anxiety, panic, self harm/self hatred, suicidal thoughts, eating disorders, sleeping problems, anger/aggression/rage, phobias, fears, helplessness/hopelessness, hypochondria, paranoia, ADHD, OCD, headaches, lack of interest in things, lack of focus/motivation and much more.

Go to a dr (not a therapist) who will prescribe appropriate meds to help you get better. With meds for anxiety/depression, you will be much better, happier, calmer, confident, safer and feel normal. What a difference it makes! And no, you will not feel artificial. With your brain working right, you will be the normal you.

St. John's Wort has been used to treat anxiety along with depression. It has a calming effect on you but it's best to take this herb in combination with another herb such as valerian root or 5-HTP. Here's a link that shares some more information about the herbs you can use. Hope this helps.