Do you think that "just being left alone" will solve the problem? I've been a basket case since I was little and I know all about the mind being my worst enemy. Clearly you wish to stop being scared, but in order to do that you have to earn it. Your mind is irrationally reacting to something, and in order to terminate the reaction or reactions you have to determine exactly what is triggering the responses you get. It sounds like the only way you'll be able to do that is get help to really penpoint the problem. It's not simply talking to someone else, it's also about looking deep into yourself and seeing yourself for what you are.

To overcome your fears you have to face them. Stop being a pussy, and face your psychosis.