Hello you are having anxiety of high level along with insecurities. First of all you should learn to do meditation and follow it on regular basis. Meditation will help you to calm your self. Deep breathing exercises are also advisable. Take 8 hours sleep daily and don't skip meals. Take balanced diet. Stop alcohol coffee and smoking if you do as adrenaline is released by them which is a stress hormone and increase anxiety. Talk to someone like your friend or a counsellor Add fruits and vegetables in your diet You should go to a homoeopath also as symptomatic treatment is given in homoeopathy The homoeopath would take your full case and would give you the best suited medicine which would help you for sure