Why can't you talk to her? What are you afraid of? Can you talk to a girl you don't know at all? Can't you put yourself into a position where you are rejected? Are you afraid you will do the wrong thing?

Nothing will happen if you don't talk to her.

Next you start to talk about depression and death. Maybe that is the true problem. Talking to a woman you like or a stranger is completely different from contemplating your death at age 20-something.