How do you deal with the regret of not selling at the top last year?

I keep replaying it in my head. I had chances to sell high last year and just... didn't. Told myself I was in it for the long haul, that timing the top was a fool's game, all the usual HODL logic. And on one level I still believe that. But some nights I do the math on what I left on the table and it stings.
I am still a Bitcoin maxi but I'm constantly thinking I could have doubled my BTC in a single year.

For people who've been through a few of these cycles, how do you actually make peace with a decision that felt right at the time but looks wrong in the rearview mirror?