I don't have a plan. No plan at all. Should I have a plan?

I think this to myself constantly. Is it a problem that I don't know what I'm doing with my life? Does it matter that the things I really enjoy are boring? Does it matter that I'm still all alone? I don't think my family even likes me that much. I think they find me annoying. Do I talk too much about myself? Do people just put up with me because they're polite?