Oh, I'm the same way. I have found the most effective way to meet people is incidentally, while you pursue other interests. Like for me: fitness, knitting and crafting, gluten free / celiac communities, nerdy sci fi and fantasy people who like stuff like Doctor Who / Torchwood. Whatever you're into that takes you into a social setting. It makes it a little easier for the socially reserved because you can focus first on mutual interests. If you don't have any interests that lead you in the direction of finding potential partners, maybe join a local activism group that matters to you?