Hi Karen!
First a consideration.....Be sure that your body really needs to lose the extra 10 pounds. Is it possible that with all of the extra working out that you have done, your body has developed more muscle and just requires the extra weight? (actually, this is one of the reasons that I prefer to measure my body rather than weigh it. The extra muscle on my body shows me weighing quite a bit extra even though I'm measuring up to be leaner).
Okay, if after considering this, you feel that the 10 pounds are extra and should come off than you need to shock your system with a new workout approach. Scramble things around such as adding one to two cardio workouts per week(never going to seven or more per week though). Try to do at least one to two new cardio activities per week. Also add one interval training workout to your weekly program. You also need to change around your weight program. You can either change the exercise order, the amount of weight that you lift with your exercises, or how often you lift per week.
So in summary, while there really is no exact answer to get this weight off, you know your current routine has not been doing it, and therefore, you need to change it around and re-stimulate your muscles.
Also equally important.... eat a healthy and balanced diet, drink lots of water, get quality sleep, and stay as stress free as possible.
Good Luck!