I'm 18 years old. A year ago I was 5 feet 7 inches, and weighed 136.4 pounds..
I always wanted to lose weight and finally now I weigh 121.2 pounds, and didn't grow taller.
I bought my prom dress but I feel like I lost some of my curves and I sort of want to gain a bit of weight but I'm scared to lose control.. what should I do? Should I go for it? Or am I good this way or too thin? :(
Please help,

It all depends on how you feel about how you look, at you height, that's a bit slim, I' 5 ft 8, although I was usually 121, the curves really weren't there, and I felt too slim, so I feel more comfortable at 130, but like you after a certain weight, It just seems to keep coming on, so if you want to gain a few, go ahead, just watch the kinds and amounts of foods you eat till you gain a few pounds more.