LOL I had a rule for my daughter ... She was NOT allowed to date until she was 16! She had so many friends "dating" around your age .. Ooooooooh the drama meter goes off the charts. (shes 21 now) I think you will need to take steps to reduce the effect your friends have on your mood.. Yep easier said than done ! But it is possible.
Your psychologist can help you learn ways to reduce the drama in your life.
I'm really sorry you are having to deal with all this. Things can and will get better if you keep working on it.