Honey, three pounds on Saturday is too much! Maybe you don't think this number is too much for you, but you should consider that your internal organs and your body have adapted to your previous weight for a long time. You suddenly changed your weight, and any part of your body has to be changed again to adapt to the new weight. So if you must lose weight, I suggest you take your time and don't use inappropriate methods. Taking other drugs or fat burning agents is even worse.
Dear, do you want to be slim recently, or do you want to have good skin, good complexion and good health in your thirties and forties?
If you think your health and skin will be the same at 40 as at 25, don't lose weight.