Every mutant is at least a little addicted to their power and don't let anyone of them tell you otherwise because it's bullshit. Even if the power is awful there's a part of them that likes using it, that needs to use it. Our powers are a part of us and trying to shut them down or ignore them or treat them like they're bad is just opening a great big can of worms. It's not worth it.
I had power training when I was here like everyone else, sure, but outside of that I taught myself. I haven't had as much training as you think I have.