I have been working out for about 5-6 hours a week including cardio and strength training. I eat about 1000-1100 calories a day for a month and have only lost 1 pound. I weigh around 200lbs and would like to weight 160-170. The weight is just not coming off. About 6 years ago I lost 100 pounds and have only gained back 25ish. It took a year and I did the same thing. This time no luck, an suggestions??