hello, I need help

Hello I'm 14 years old and for about 10 years I've struggled with anxiety and depression. I self harm, and for the past 2 1/2 years I've self harmed. When I do it it's usually on my thighs. My scars are visible. And my problem is. I need a bathing suit. It's summer it's very hot where I live. It's like 100 every day. And my family wants to start swimming. And most of the swim suits are bikini bottoms. And even the ones with shorts are not long enough. I would just like some help and advice. Even if you don't have any, at least someone to talk to.
( if you think my problem is stupid or a waste, just leave , don't bother with the hatred comments, and to the people that actually care, thank you!)