Here is my advice. You probably know that drugs, alcahol, any other form of addiction is going to aggravate your anxieties. You are not crazy, just confused. You are human.
I am a social phobic. I am in the midst of a downfall. I am not working at the moment and feel that my life is on pause. I smoke but I don't use any other drugs. I am a part- time smoker and really want to quite. I'm sure you understand the frustrations of wanting to change something but feeling like it's not possible.
Anyway, I have come to understand that I am a very sensitive person, I always thought I was pretty tough. I am very intuitive which explains why at times I know what someone is going to say before they say it. I am able to pick up on what others are feeling. The world is made up of feelers, thinkers and doers. I believe that you may be a feeler.
Unfortunetly, drugs may magnify your feelings or push you to become paranoid or dillusional as a result. This is not a negative thing to have, we just need to learn how to work with it rather than allowing it to control our lives. Just like many great thinkers have had problems with depression as a result of not being able to use there thought processes constructively. Many people become frustrated as a result of blocked intelligents. We need to burn this excess energy in a positive way.
Worrying about other people seeing your nerves is part of it. I have spoken to some friends about it and they tell me that I come across as extremly confident, self assured and to my greatest surprise- give off a positive energy! So you know I feel that people can see straight through my visade as well.
I will not take medication and would urge others to try very hard with alternative methods first. Try seeing a Psychotherapist.
Best of luck:)