Cellulite Insecurity

Ok so I am a very very very active person, and work our six days a week. I eat very well, and so on. However, I looked in the mirror a few months ago (I am 15 btw) and saw that on the back of my legs there was tons and tons of cellulite. my legs are super strong and my body fat percentage is very low- yet I still have cottage cheese on my legs?!? I just feel so so insecure about it now to the point where I will not ever wear shorts unless they almost go down to my knees. has anybody found a good method for them that works for keeping cellulite at bay? Please help summer is coming and I don’t want to go to pool parties with a towel around my waist 😕