[Catharsis.]

I essentially agree with the others. Tattoos can sometimes be an acute form of self-harm, even if they seem like a good alternative. So, it might be helpful to consider whether or not you are doing it for the pain/sensation or whether or not it might be becoming a problem, perhaps a sort of compulsion for getting tattoos.

That being said, it seems like you are getting these tattoos for the reason that they are meaningful to you, so I think what you're doing is okay. Plenty of people get tattoos that are more symbolic of what they've struggled with than anything else, which I think is perfectly fine. I wish you the best!

-Gareth