How can i loose some weight/ feel better about myself?

Lately ive been feeling really depressed about my body. Im 16 (female) 5'0 and about 110lbs last year i weighed like 97 lbs and today when i tried to fit into some shorts from last year (00) they were way to small , and i suddenly got all sad. My mom is always telling me to eat less ( but im always hungry) and tells me im getting big... this takes a big toll on my self esteem and no matter how much i tell her to stop, she doesnt. I have a curvy shape ( 26 waist, 36 hips) I haven't gotten my period yet, weird i know , but iver been to the doctor and they say its all fine. Could i just be storing up fat for my final growth spurt? how can i loose some weight quickly?