You know... you need to sit down with yourself and start working on whom you want to be. Objectivelly look at your negative traits, as if you were looking at your partner... which ones bother you and which ones can you pretty much put up with?

And start accepting yourself. Nobody is perfect, but even imperfect people can be loved... if they are able to love themselves... If you are negative to yourself, you give a negative vibe and it might turn people off...

Try to find some distraction. Read a book. Write music reviews. Sketch... give yourself something else to think about than your imperfections.

In the end it's all about you... Do you really need random people care about you? Or do you want few good friends?