This ^^ is exactly right. Peters tattoos are about control,’something that is his to see however he wants to. So yes, it starts out as sort of a harmful coping mechanism but turns into something beautiful BUT it didn’t require him changing his way of coping it just required him changing his perception of how he was coping.
Like Wade wasn’t going to tell him to stop getting inked, but he was going to tell him to stop seeing it as punishment and see it as more of a reward
Healing from (insert literally anything here) starts with a shift in perception of ourselves and grows from there and that’s the point I was trying to make when it came to Peter healing. It wasn’t fast and it wasn’t easy but it started with switching from “I’m bad for this reason” to “I’m good for this reason”