How do i make my friends like me again?

ok so im an 11 year old girl and i take kickboxing. One time we were kickboxing w/o pads and i was up against this guy. I was wearing a sports bra so he was staring at my stomach, meanwhile i kicked him in the stomach. I beat him up and someone took a picture of the exact second where my kick hit his stomach. It got out on the internet and all the boys in my school say i look y showing my stomach while the girls hate me for kickboxing. What should i do ?