Some things that helped me lose weight --
From Byron Richards, nutritionist -- Never eat after dinner. Eat three meals a day - do not snack. You're supposed to have a snack between meals, but it's supposed to come from your liver. The ability to go 5-6 hours between meals is one indicator of liver fitness.
From Dr. William Davis, cardiologist -- Consider dropping the oatmeal, even if it's gluten free. He's found with his patients that keeping postprandial blood sugars at or below 100 leads to easy weight loss. Or, say, if your pre-meal blood sugar is 110, let it be no more than 110 one hour after eating. He advises buying and using a simple glucometer. After you test a meal and find your response to it, you don't have to test it again. (Unnecessary pricking of fingers and expense of test strips.) He's found oatmeal in general to raise blood sugar unacceptably high, though it's the meal itself that counts.
From Covert Bailey -- Sometimes you have to slow down. I got to a really frustrating plateau, and started thinking about what it would take to resume losing weight. I remembered he'd said that, and though I was scared to do it, I stopped pushing my treadmill routine so hard. Once my body relaxed, I started losing again.
I was hypothyroid the entire time. This made the weight loss take longer than it needed to, but it still happened.