(This one is for those who weigh regularly. If you don't weigh yourself, don't start. If you can stop weighing, definitely stop.)
It's not how often you weigh but what you expect and what you tell yourself that really matter. If you are successfully maintaining while eating what you want, when you're hungry, and to satisfaction. That's major! You have to be able to do that first in order to stop the yo-yo restriction weight cycle. As you practice (remember, it takes practice) noticing the subtleties of hunger and fullness and eating to satisfaction, your weight may start trending down over time, but if you're already a healthy weight it will not be a magical pound or two every week like when you're severely restricting, or like for someone who has more body fat to lose. If you expect that, it will cause anxiety and conflict. If you expect that your weight is going to stay about the same from week to week, perhaps gradually trend down over time, but occasionally bounce up for no special reason, then your expectations are more in line with reality.
The only time I have ever lost weight permanently and kept it off effortlessly, I lost it at the rate of about a pound a month. Slow is good. Slow rules, because it means the method is sustainable. We all know how to do something radical and short lived, or something obsessive and impractical. Most of us have never tried slow, sustainable, enjoyable. I sure hadn't! A week with no loss on the scale and I'd think, "Well, this isn't working." and immediately do something stupid and ineffective. It was my own expectations tripping me up. Expect something different. Give it time to play out. You'll be amazed.
When I try something different with my eating or workouts, I give it 4-6 weeks before I decide if it's working for me. It takes that long for there to be a concrete result from the change. That's if you want to see a difference in scale weight, or clothes fit, or workout performance, or muscle definition or something. My old approach was to give it a day and a half, maybe a week if I was really determined, freak completely out and change everything. Is it any wonder that nothing worked? It helps to take a much longer approach.