People forget good things can be propagandized, like the COVID vaccines. We got a slew of ads and media telling us to get it for this reason or another. From experts and data, knew the intent of the ads were for the better of man kind.
Dude, remember all the bullshit propaganda that was being spread about the COVID vaccine? How we were all going to die or get cronenberged, magnetized, or some mind control shit or other? Where are those people now? Can they look back on all the shit they gobbled up and then spat out, and at least admit that maybe, there’s a chance that they were possibly a little bit wrong? Fucking twats.
That's antithetical to OP's post though. The whole point is to keep an open mind and question everything.
It's not a bad thing to question your own identity. Question it, answer it, and then embrace it. That's where personal growth comes from. Everyone has been doubtful of an identity before, because at the minimum we've all been teenagers at some point.
Surpassing your own doubts about your identity is how you solidify your identity. When you've answered your own doubts, you will be ready to face anyone's doubts about you.
Man as silly as it sounds, I swear, so much of my verbiage has been expanded because of Halo games. I think in 5 the main antagonist was called The Didact and I remember looking it up.