I just turned eighteen and I have no type of curves at all im skinny and look like a broom stick I try to eat more but it seems as though that I have a fast metabilism but I want to gain wait?

maybe insted of trying to eat more and stuff yourself you should eat junk food but not to much just still balance out your diet with healthy stuff too.......... that's what i would do.

You can also talk to your doctor about what will help you gain weight.