How do you handle going to the beach & negative body image

I constantly compare myself to others. I’m having a hard time coping with my body because I’m only 25, but I have two kids who covered me in stretch marks. It genuinely hurts me so bad knowing there’s nothing I can do about them, and no matter how toned or whatever my body is I will still have those. Deep down I know that isn’t important, but when we’re at the beach I just can’t help but compare and feel SO INFERIOR to everyone else. Especially when I see other moms who were lucky to not get stretch marks. They just look so much better than me.

We’re going to the beach next weekend and instead of being excited I’m dreading it. I just want to enjoy my time, feel relatively good about myself, not be worried about my husband seeing women way better than me, etc. I’m hoping maybe someone here has struggled with this before and has some tips or advice for me.

Also just to add, I am starting therapy to work deeper on these issues. I know that’s probably very necessary with my deep insecurities. But my appointment is over a month away and we will have two beach trips before then so I’m just desperate for any help in the meantime. TIA!