I second REALLY evaluating what you are eating. It may be time to log everything that goes into your mouth. You may think you are eating well or within a certain calorie goal, but are you really.? I thought I was, until I started logging. There are some good websites and smartphone apps that make it pretty easy.

Do you know your base rate for calorie, that is how much you need to function, BEFORE any exercise? Do you know how much more you can eat, calorie wise, for the amount of exercise you do in a day?

Last fall I was on a quest to reduce fat without loosing muscle. I did it with the help of some guidelines from a trainer, as part of a challenge at my gym. Here's an example. To lose about a pound or two a week, my base calorie rate was 1200. If I rode my trainer for an hour, or did my high intensity circuit training, I could add in 450 calories for the day. For me and my size, 2000 calls a day would have still been too much. I was riding my trainer 2x a week, doing a high intensity circuit 2x a week, and something moderate. At the end of 12 weeks I'd dropped fat from 31% to 22% with very little muscle loss.

So short version is, look at the food piece of it with careful analysis.