I think you're too hard on people. Not every conversation has to be some deep and meaningful meeting of minds. There's lots to be said for a night of crude jokes and chasing women. I'd argue that it's a lot more human experience than deep conversation. It really sounds like you need to relax.

Meeting people on the internet is no substitute for honest-to-goodness human interaction. Also, it's a good idea to have lots of friends that you have nothing in common with. The perspective you get is invaluable.