120lb is borderline, don't lose anymore weight. its unhealthy, and it can be physically damaging. you should eat small and work youre way up, a friend of mine has a similar problem, thats what shes doing. shes 17 and only weighs a little more than you. since youre so active you shouldn't starve yourself. If you want to lose, fat, then exercise some more. Stay trim, but not TOO trim, i actually recommend gaining some weight. As for guys, take it from me, were assholes!