How do you heal scars?

I hurt myself alot by mistake while working because I get dizzy and out of focus easily, I'm also clumsy, but I also have a habit of picking at my healing wounds/acne/mosquito bites and they end up as scars

I was wondering if there's a way to like, kinda just heal those scars? Even if it's just partial, it just irritates me how many scars I have, some of them are old and some are newer but idk if that makes a difference