Hey!! Big congrats on your success so far I had a similar experience. I lost 55 lbs in 7 months and then it took another 9 months to lose the last 15 lbs. It was maddening Hang in there, it just gets a lot tougher the closer you get to your goal weight. The weight did come off, it just took a looong time.
Since you appear to be doing AWESOME with exercise, the only thing I could possibly suggest is just being brutally honest with calorie intake (measure and record everything you eat) and trying to eat as cleanly as possible (limit processed foods, etc) - which you are probably already doing!
I had a very interesting experience. I eventually got to 140 lbs (5 lbs from my original goal of 135) and just stopped losing weight. I worked out more, worked out less, cut calories to 1200. Nothing worked. I finally figured the body was done with weight loss and increased my calories to maintenance (around 1800 a day). I actually lost the last 13 lbs (eventually I reached 127) but eating more than I ate to lose the first 55 lbs. I am not a doctor, nutritionist or registered dietician, so I’m not sure why I had that experience.
My own personal pet theory (with no scientific backing at all) is that my body interpreted the long term calorie reduction as a sign of little available food and did what I would want it to do if I were really in a famine, slowed down my metabolism and hung on to stored fat reserves. When I started to eat a little more (but still under maintenance calories for someone of my height/weight/age/gender/exercise level) the body realized there was enough food coming in, no danger and let go of the fat reserves. Like I said, only a theory!
Good luck to you on your last 10 lbs and huge congrats for your journey so far!