I know how to swim, like any normal person; I grew up with a pool and I was always as fast as any person I would race across the pool. I don't know how to REALLY swim. I mean I know no proper strokes (***, butterfly, and so forth), and I've never been around the swimming world. I have a bit of a bum knee that keeps me from running. (I had a track scholarship in college.) I was always athletic, but now I'm an out of shape, 33, stay-at-home mom, and I just want to learn how to swim properly, with the hopes of maybe getting into master's swimming someday. I really miss competition. How do I begin? Do I find a trainer, and if so HOW? Thanks a bunch!