I am about to be 50. I drink water and no-calorie drinks (diet soda, unsweetened tea, stevia sweetened coffee and tea, etc.) I rarely eat sweets, I eat fruits and veggies, avoid white stuff (bread, pasta, rice, sugar) and I don't eat after 6pm and I still cannot lose weight. I am 5'4" and weigh 193 to 196 pounds. I'm frustrated. Even when I have been more regular about exercise, I still do not lose weight. What more can I do?