Personally, I believe anyone can change, regardless of what they did, with enough time and effort, but also, the way he worded this is kind of weird. Particularly the part about "recovering from the version of myself who did this." Nah man, YOU did this. Trying to separate yourself from your past self and then pinning all the blame on your past self and describing yourself as a victim of your past self is really weird. That makes me question if he's actually changed, because it sounds more like he is trying to shift the blame onto "another version of himself." Like, what?