I am just getting started on this round of weightloss attempt. So, many others on here should be able to give much better advice. I did have a stall period the last time I was able to really lose some weight. This was in 2009 and 2010. I was 186 lbs and started to lift weights and exercise more consistently. I didn't count calories at that time, but was strict on the foods I ate. I had to eat at least 4 servings of fruits and 8 serving of veggies everyday. And I ate no sugar and no processed junk food (of course I cheated some but overall followed that plan). I lost all the way down to 168 and then stalled. My stall lasted about two weeks at which time I kinda gave up and became more lax on what I ate. But I was eating mostly healthy and ended up staying right around 170-172 for a whole year.
Doing the same thing I had been doing wasn't working to break through that stall. But getting discouraged and giving up only resulted in me back where I started a few years later.
From being on here I see that so many people hit stalls, and some people stay plateaued for months. But it seems eventually people who stick it out break through. I'd imagine changing things up somehow is a good way to shake tings up and break though? Some people seem to have luck adding some calories back, its like their body realizes that foods isnt so restricted and then lets go of some fat. Also changing the types of workouts you do may help. I dont know if you lift weights or not, I assume you do. Maybe find another program to follow or lift heavier weights less reps. Again I am not speaking from my own experience. I am just regurgitating things I have read on 3fc.
Here is the only advice I can give that I know to be true. DO NOT GIVE UP. When I plateaued thats what I ended up doing. And honestly it was easy to do, being 18lbs thinner I felt "good enough" with myself to be ok at that weight. But quitting eventually lead to regaining. This time around, even if I plateau at something higher than goal, and even if I decide that I would be ok staying there awhile or indefinitely, I am not throwing in the towel. If I need a break from losing when I hit a plateau I WILL work hard at maintaining. Because the thing you really dont want to do is stop paying attention and go back to old habits.
Good luck and I hope you bust through the plateau quickly. And I hope veterans who have been successful can give you lots of good advice.