Yes to all, and there are things one can do to feel less old. I just got new hips! I was in a long, steady decline and walking like an old man. My physical therapist, who had helped a lot along the way, pretty much gave up on me. “You should probably get some imaging done”. My doctor asked if I’d had my hips radiographed. Uh, no. Got it done right then and OMG! Those bad boys gotta go! New hips, new lease on life. Next it’s the arthritic wrists, to the extent they can manage that pain.
So, yes to not allowing a suffering mindset, but no to enduring what can be fixed or improved.