I feel like I really suck at life.

I'm 33, unemployed, going to school with people who were in kindergarten when I originally dropped out of college. I try to make friends there, but no one is that interested in someone as old as me.
I'm an introvert, so I don't "do" clubs and bars. I don't know anyone my age at church (they all seem to be 10 years older or 10 years younger than me). I tried OKCupid, but it was exhausting searching through hundreds of crap profiles for one decent one...and then not hearing back from them.

I have no life. If it wasn't for my school, roommate, and my parents, I would probably go days without speaking to anyone. I'm lonely. My best friend is pregnant with her first child, friend #2 is in a committed live-in relationship, and friend #3 just got engaged and moved in. (all three of them live a minimum of 45 minutes away, so we see each other monthly)

It seems like an awful lot of you are in (and out of) relationships. How do you make them? How do you meet new people?
My best friend's husband is Chinese and joked that there's a high male to female ratio over there...AND I ACTUALLY CONSIDERED IT FOR A FEW SECONDS.