I don’t have an answer for you, you’ll have to chart your own path. I will say that I agree with your take on social media, it seems very peripheral-route-focused.
If you’re looking to do something practical on AI consider looking into a career counseling organization like 80000 Hours. From what I’ve seen, they fall into some of the traps I mentioned here (seems like they mostly think that trying to change people’s minds isn’t very valuable unless you actively want to become a political lobbyist) but they’re not bad overall for answering these kinds of questions.
Ultimately though, it’s your own life and you alone have to decide your path through it.