How to do this thing how to do maintenance

Congratulations on reaching goal, @Egotrapped: That's huge and wonderful. I can totally relate that making maintenance work is a new and somewhat different challenge. It took me some time to get there, too.

Reading between the lines, it sounds like you would like to stop counting, or at least do it in a more relaxed, approximate kind of way. I get that. Still, the best suggestion I can think of involves counting for a while more, so I hope you'll bear with me for a long post. I'll get there. So:

Have you estimated your own calorie needs based on your rate of loss?

If not, I'd suggest starting there, using your most recent 4-6 weeks of calorie and scale weight data. There are instructions about how to do that in this thread, so I won't go on at length here about the "how":

https://community.myfitnesspal.com/en/discussion/10638211/how-to-find-your-maintenance-calorie-level/p1

I'm guessing that part of the problem is the MFP (or some other calculator or fitness tracker) inaccurately estimates your calorie needs. For sure, that is true for me: MFP thinks I'd maintain around 1500 + exercise. Reality, it's more like 2000 + exercise. (That's based on 8+ years now of logging, since I chose to continue logging in maintenance.)

Even with personalized estimate like that, some people find that as they add calories to estimated maintenance, their body up-regulates energy level, they move more (plus some subtle stuff like faster hair growth), so their calorie needs go up more than expected.

That may be true for you, but there would be a ceiling on that eventually. If you keep counting, and keep looking at your loss rate in terms of what it's mathematically telling you about your calorie needs (as a multi-week average), you will eventually stabilize in weight. (I'm sure you know that "weight stable" means staying in a range of weight, maybe +/- 3 pounds or so. It's not just a single number.)

While you're working on reaching that stable range and getting close, and if you haven't already, start thinking about your habitual patterns, the patterns in how you eat and move, your routine habits. Stopping counting, and relying more on the scale, will depend on having generally repeatable patterns in your habits.

This doesn't mean eating in the exact same way every day or doing the exact same exact movement/exercise, let alone never having treats/indulgence! It just means recognizing that the majority of your days will determine the majority of your outcomes, so understanding the patterns that work for you is useful. Your patterns might involve a bigger dinner each Saturday night, or variations in exercise depending on weather or whatever, but they'll tend to average out when you look at your needs/experience over a period of 4-6 weeks (whole menstrual cycles, if you have those).

When you have a good handle on your life patterns, and on the scale results that come from a certain set of eating and activity patterns, you should be able to stay weight stable without counting religiously, maybe not counting at all.

It would still involve watching the scale, not necessarily daily, but also as a multi-week trend. With somewhat consistent eating/activity patterns, weight gain or loss tends to be a slow, creeping kind of thing. Some people use a rule of thumb like "when I'm above my maintenance range for 3 days in a row, I cut back on treats or snacks until I'm at the bottom of my maintenance range" or variations on that theme.

Like I said, I've chosen to keep calorie counting in maintenance (7+ years so far), because that is stress-free and generally ideal for me. I do do it in a more relaxed way, skip logging some days now, rely on the scale more. But if I wanted to stop logging, the above is how I'd approach it.

I hope you get some personal experience suggestions for others, and I wish you good outcomes!

Have you read the "Most Helpful Posts" in this Maintaining Weight section? There are some threads there, and in this section in general, about how other people make it work.

Best wishes!