Where do you find the perfect girl?

I've been wondering that to myself for some time now. I don't think I've yet to have found a woman who honestly understands me. Which is hard I guess. I'm 18 years old ,I attend Georgetown University, I love a large variety of music especially work of Radiohead, Marvin Gaye, The Beatles etc. That seems to not have anything in common with any female I've ever met. Also just in general caring about me and doing sweet stuff for me for a change every now & then. I hate that I can't find that and I feel lonely because of it. That's probably why I ask so many what should I do questions about girls cause a lot of my Ex's I had a gut feelings weren't gonna work out. Any suggestions how to go about this :)