At this point I only wish I haven't sold at the top to buy back now because I'd have more bitcoin, but I don't trade so it's in a way a bitcoin path that I chose to follow. No trading, just holding for years, but there's that voice in the back of the head saying -you could have more bitcoin, and another one saying -don't be greedy, you have enough!
I avoid exchanges and recently only sell for cash if I need to buy some stuff.

I only feel temped to sell when the price is very high. I sometimes sell some bitcoin when we reach a milestone, for instance once we broke above 69k in March, I sold a little bit.
Prolonged bear markets only make my dedication stronger. If we were to break down to 40k or something similar, I'd do what I did in the last 2 bear markets - wait it out.