One thing that I have found when I try to carefully track my calories eaten and burned: the estimator for the calories burned seemed to estimate high. I started using a heartrate monitor, and that helped a lot to get a better picture of what I was really burning.
And... 10 lbs in 12 weeks. That's GREAT!! How long did it take you to gain those 10 lbs in the first place? A lot longer, right? As long as the scale is moving downward, slowly but surely, you will get there.