so I'm 5'7 and i weigh 168. I would like to lose about 20-25 pounds in 3 months. I am two weeks in and i have yet to lose anything. I do three miles a day on the treadmill 7 days a week and cut my calories to 1700. It very frustrating. How long should it take before i can really start seeing a difference? I had to tell my husband to hide the scale because it just got too depressing.