I managed to lose weight in the gym, but I didn't hire a personal trainer. I lost 25 kilograms, groped by myself and took some detours. The point is to practice more and eat less, as long as I am not hungry at every meal (this is the most important point). It's hard to keep exercising, but it's hard to keep exercising. It is to practice regularly and quantitatively every day (once to 30 minutes), and try to stand instead of sitting still at ordinary times.