If you are tracking your foods with a calorie tracker program, then perhaps it also shows you the percentage of your calories that is made up of each nutrient, that is, protein, carb, fat. What's your protein %?
Now, as to your general description--I think you might be trying to micromanage your weight loss a bit too much. The body does what it does, and it's hard to "make" it drop a pound just because we had a goal...

Still, I hope you can reach that 170!
Jay