Warm up with some puzzles, also rapid is really good at making you getting better at bad habits, if you play it like bullet than you'll probably lose.
I recently hit a well sought-out goal of mine and since then I have been playing chess on a casual level, no more serious training just having fun and playing game and celebrating the small milestones along the way.
There’s no such thing as casual chess for someone serious about improvement—but balancing enjoyment with discipline is key.
Dunno what made me think playing a rapid chess game after a lengthy pause, just to get some dopamine, was a good idea. Turns out I can't play without spending more time on improving my vision and calculation, so I lost. At least this pushes me further away from my bad habits, I guess.