My scars are very light, so I don't think that people notice them. Also, it wasn't until my late twenties that I did anything that left permanent scars. I always wore long sleeves for a couple of years, then decided that it didn't matter. Nobody says anything - they probably don't notice.
You could find that you are fighting yourself on this. My last time, I knew that I was going to try something so I wore a jacket with long, tight sleeves so that I couldn't easily get to my arms. So I scratched up my face and leg instead because it was the only exposed skin. Those scars are not noticeable now, but even with a lot of makeup and my hair loose and in my face, it was impossible to hide while it was healing. Still, only a couple of people said anything (I mean after the first day when there were some significant reactions - I got taken to jail for suicide watch). The whole town probably knew before they even saw me.
Anyway, if you are tired of hiding it, it's possible that that part of you could take over and make sure that you can't hide it.
If you decide not to cover it up, be prepared to get comments. You just have to decide whether you would rather deal with that or keep worrying about covering it up. Which is going to bother you more?