I think you're 20 years old and too young to be thinking this way! Everyone in your age bracket or sometime thereafter is still trying to figure out who they are, much like everyone in their twenties, so it's no surprise they crave the security of a clique and the sexual experiences that may come out of it. You're still trying to figure out who you are too. You've only told two people you're gay, and they're already your friends. Put yourself out there a bit and see where it takes you -- the exciting things in life happen outside your comfort zone.
Have a go with the cliques and the nightclubs and the sex and enjoy your youth (responsibly)! If you can't, take solace in the fact that in 10 years you will have lots of gay friends whether you like it or not, and after having moved to a quiet streetcar suburb (like Riverdale or High Park) you will be swapping stories over dinners (away from the nightclubs of the village) about how your friends (who have been together for years) have finally found a surrogate mother and are about to have a baby.