So, I've had the experience both of staying in a dorm by myself (just for one term) and attending a commuter college (that is, one with no provided housing). This will probably vary some, but in my experience, things like student housing and meal programs are usually a fair bit more expensive than living on your own and buying your own food. Schools get away with ripping you off because dorms and dining halls are more convenient when you don't know how to do shit on your own. I would do the research on your school and the surrounding area before you make assumptions about what will be cheaper.
There's also another option you haven't mentioned--rooming with other students off campus. A lot of upperclassmen tend to rent big houses together, splitting costs. You could still have your own room and a bit more flexibility in choosing your roommates. It doesn't necessarily have to be far, either. I live like a ten-minute walk away from the main campus. If you're worried about getting distracted by other people, get used to going to the library. That's the most distraction-free place regardless of your living situation. Study groups are a good idea, but you should typically form them with people you meet in your classes, not people you live with. If you get involved with campus activities, you don't have to live there to develop a social life, and you can always go over to other people's dorm rooms. Also, I might be underestimating the naivete of freshman/sophomore girls, but I think you'll have a hard time getting laid no matter what if you actively try to go for "mysteriousness," especially as an 18-year-old kid. This reads as contrived and creepy almost all the time. Just try to be a human. dw, you'll learn.
Oh yeah, you mentioned cooking. Most schools won't let you keep so much as a hot plate or even a candle in dorms. Microwave's the best you'll get. Even if you get a solo dorm room, you'd have to use a common cooking area in the basement or something, if the school provides one at all.