How do I hide SH scars while swimming?

So I've cut for a while and im mostly done, but now I have to do swim team. How do I hide scars while swimming in a speedo, like I can't do braclets or temporary tattoos. and I don't really want my coach and the whole team to find out. They are in my inner arm and thigh, what should I try?
How do I hide SH scars while swimming?
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