Glad to hear you're doing better. And near death experience as a teen sounds like a lot, especially if you didn't get appropriate support after. But philosophizing isn't the worst thing you could've done, in fact please keep doing that. Crash Course to Philosophy is a nice and engaging starting point if you're interested.
If it is within your means, no reason to not go see a psychiatrist now if you feel there's something unresolved there. I realize that's a slightly privileged invitation these days though.
Oh but there certainly are people who wield every one of those insults against another with the intent to describe the core of their being. The difference between calling someone stupid, and calling someone's action stupid is a vast one. I am glad you see it, but many do not.