Help needed please

Hey everyone! I'm a 17 year old girl here. I just wanted a little help with my new obsession that I'm trying to get my mind off of. I used to be really repulsed to sex and sexual desires and just everything related to sex a few years back when I was 13 or 14 but later as time passed I don't know if I changed or what happened I really started to....you know just idk how to put it but like wanting to do it and develop sexual desires. I'm not really a slave to it but it's in my mind but I don't want it to be😔as a student I have to focus on my studies and my career in sports as well. Could someone please advice how to like not think about it and just get it out of my mind?(Masturbating is not an option at all😖)