Does this weight seem right for my age?

Im 14 years old and I'm around 5'5" - 5'5.5". I weigh around probably 132-135 pounds. (dont really know exact weight). I measured my waistline and got 26.5" and around my hips are 38.5" Does this seem okay for my age? And is there anyway to lose some more inches around my waistline(i need to get a dress fitted for an event in a month and i wanna make sure its comfy)?