how to boost low self confidence

I've been struggling all my life to be able to somehow "be part of the group". For a long period of time, I feel like I am always different from other people in a way that I cannot relate to them or should I say I think I am a social pathologist - one who cannot deal or get along well with other people.

I have few friends (I'm glad I still have a few) but I want to be someone whom everybody is fond with, someone whom everybody sees as jolly and not boring. I want to be happy even without a boyfriend - that is I want to be happy without someone telling me i love you! I want to be self-fulfilled. I want to be successful in life. So much more of I want's. But how can these all possibly be if I lack self confidence?

Can someone help me?