Should i be worried about my weigh?

I am 13 almost 14. I weigh 92.3 lbs and am 5ft 1in tall. Everyone says im really skinny, but i feel fat. I think im overweight. Also, i am a ballet, jazz , and lyrical dancer all year round. I dance 5 hours a week. In winter i cheer on my team for 7-10 hours a week and i tumble. In spring i have track practice 9 hours a week. Is this enough physcial activity. I usually weigh 90 lbs in winter btw. Am i at a healthy weight for my age? What do people my height and age usually weight? Sorry about all the info and questions.