br00t4lxstage,
Please don't get all stressed out and worried at 18. I know that you feel that nobody out there may like you, but I honestly think that in time you will find that is a wrong assumption. Yes most men tend to be shallow and in many cases go for the physical attraction, but just like yourself, there are men out there who aren't olympic athletes and some of them are nice guys who appreciate finding someone that they fell comfortable being with and eventually being intimate with.
My point here is, don't give in to convention and feel that you are not "perfect" and that you have no self worth cause that is wrong. We all have those things within us that make us special and as my mom used to tell me, there is a guy out there for all of us (your soul mate if you will) and you just haven't found him or perhaps he hasn't found you, but when the stars align...it will happen.
Take heart and keep you great personality and social skills going and, when you least expect it, it could happen.
My 2 cents,
Wendy