The problem is that the scale is a really poor indicator, especially for small amounts of weight loss/gain. I’ve had multiple times (one just recently) where the scale did not move or went up, but I lost a belt hole and my pants fit better.
I also had to stop fasting for a while, as I was getting cold all the time.
Other things to try: no sweets (personally, I never have anything sweet unless I schedule it, such as for Christmas); go dairy free for a while. For me, sweets just make me want to eat more. The most I do now is 85% chocolate, which to me tastes like dirt. Dairy is tricky. I’ve both used and not used dairy, and I find it hard to tell whether I’m affected by it. It’s another possibility, though.
When I started out, I ate a lot of fat. Lots of it: fat bombs, butter and coconut oil in my coffee, butter on my steak, fatty processed meats, etc. Now, I rarely eat any of that. I also drain my ground beef (gasp!) and eat “95% fat-free!” ham. So, you can also try to decrease your fat (which means increasing your protein) to see what happens.
I recommend doing one of these things at once, otherwise you can’t tell what’s going on.