Scar makeup for prom?

I finally got a prom dress, I have really low self esteem and it was a day with a lot of mental breakdowns in changing rooms because my boobs really aren’t proportional to the rest of me, and I have a lot of self harm scars all over my left arm, but I braved it and went for short sleeves and I am really nervous for the day, but we’re going to be covering them with scar makeup, has anyone got any suggestions of good makeup for this?