torn between embracing the tummy and learning how to dress for my body type?

hi yall, I'm in my last year of high school, and prom's approaching, so a lot of my friends around me are talking about diets, losing weight, exercising—anything you can think of so dresses look better. It's started to take a toll on me because I'm not the skinniest, and it makes me feel like I should also be trying to lose weight for prom like them. But that's a problem for another day!

I'm at a healthy weight, but I've always wanted a flat stomach because I feel like it would open up so many outfit options. I wouldn't say I'm insecure, but I'm pretty aware of how my tummy looks in outfits. Also, I know there are different ways of dressing for various body types, but I can't imagine feeling comfortable in crop tops unless I get that flatter stomach. At the same time, I could just decide to not care about my appearance and wear what I want, but that feels so difficult. To clarify, this isn’t specifically about what I’m wearing to prom, it’s just how I feel in general.