I've been in your shoes although I changed somewhere about 19. I'm in my mid-twenties now and still as "low-maintenance" and non-girly as you can get. You'll get a lot of "be yourself" posts and "they should like you as you are" posts. And that's great because it's all true. But being where you are I can say from first-hand experience that the old saying "you can attract more bees with honey than with vinegar" is true. Don't get me wrong, I would still consider myself a tomboy. High heels and make up are not my thing to this day but I realize that most men want a women with some degree of feminity or else what sets them apart? Don't even try to get some rediculous make over but do get bit more conscious of your outward appearance if you want to "attract" a guy. You'll find someone. A lot of guys are turned on by girls who are "just one of the guys" but whom they still find attractive.