Do I seem like a pretty normal guy?

I like to make people laugh, and I do pretty good at that. I'm intelligent, and I can carry out a conversation with someone. There are some things I keep hidden, though, such as my mental illness. Despite appearing normal, I've wrecked almost every relationship I've ever had. I have no friends, no acquaintances, nothing. I could go on for hours about this mess. If I just start telling people about this, would it freak them out, or would they finally understand why I am the way I am? Would they pull away even more, or perhaps I could start making friends?