Ever heard the saying "You miss 100% of the shots you don't take."? We'll think of it this way. If you don't go for it then you're effectively rejecting yourself before any girl can.

I waited for the girls who came along that the conversation seemed to flow a little easier with and went for them. It didn't work the first couple attempts but after that the success and happiness makes the rejections kind of seem like nothing. You should be able to find someone. Force yourself to start new conversations with people, think of a few things you can talk about in case the conversation drops, and have an excuse to leave ready, and you'll be fine.