Three-week stalls are the worst because you start bargaining with yourself at 11pm. I sat at 194 for 26 straight days last spring, same deal, lifts going up, waist down a notch, scale absolutely immovable.
I did the dumb thing first: cut to 1500, added 30 min of incline walking, felt like garbage within ten days, scale didn't budge a single tenth. What actually broke it was boring.
I went back up to maintenance-ish for five days, slept 7.5 hours instead of my usual 6, kept lifting, and stopped weighing myself until Monday.
That Monday I was 194.6, Wednesday 192.8, by Sunday 190.2, so 3.8 lb in six days after almost four weeks of nothing. Not magic, I think it was water and cortisol and glycogen finally letting go, but the lesson stuck: when the tape moves and the scale doesn't, I'm still losing fat, just not losing weight yet.
Side-by-side photos at day 60 vs day 90 look way more different than the 9 lb between them suggests. I'd hold 1800 another two weeks, sleep like it's your job, then trim.