Does anyone relate? Help

So I’ve always been a very insecure person, and yet so confident at the same time. 🙄 but I have the worst problem with “creeping” on other females Instagram, and finding myself completely jealous about everything in their life...from the fact they’re a size 00, personal trainer who rides horses to a girl who works on her truck. Now I’m not saying my life isn’t amazing, I’m 21, an RN, I’ve lost 40 pounds this year and I’m now a size two. But I can’t stop. It’s so unhealthy I know...and I hike, I really do enjoy my life but I can’t stop looking through a phone screen being completely jealous. Idk what to do, I don’t want to completely delete social media because hello I’d get bored as fuck. And it’s not like I can’t just google her Instagram and look that way....believe me I’ve tried. I just don’t know what to do to stop the self sabotage or why I feel this way in the first place.....