This is.... strong. Really strong.
You take a different outlook on your scars here. They don't seem to be a "scarlet letter" anymore to you.
They still stand out, yes, but they mark something different.
They don't symbolize the monster you thought you were, it symbolizes the monsters the people are who hurt you.
It's a turn around poem... and it's very good.
Repeating the in-your-face comments are the best.
"I get asked why I cut myself"; "and you dare ask why I cut".
Strong. Good.