I feel alienated from the rest of the world.
Is that true? How long have you felt that way?
It's been building for a long time.
I think most people feel alone at some point in their lives. Don't feel guilty about trying to fit in with others. You're not meant to be liked by everyone.
That's not very comforting.
I'm sorry, I'm just saying that many people understand what you are going through, and you should reach out to someone if you truly feel this way.