I have problems losing as well. I have tried calorie control, then for a while now low carb,and now really low carb and high fat , I also cut out drinks. I just think that it can be very hard because it is not simple biologically. It's also easy to get obsessed if you are very motivated. My latest decision is to increase the exercise. You may be increasing muscle, which weighs more anyway and would help to burn energy. Do you have scales which tell you fat and muscle percentages? Have you tried anything else? Good luck!