If you go to the gym, it usually takes 2-3 months to get obvious results (if you are fat, if you go to the gym every day and exercise hard every day, you will find yourself thin in at most 3 months).

You usually do two things a day when you go to the gym. One is to exercise the muscles in the parts you want to exercise today. The other is to lose weight. If you want to lose weight, you should do aerobic exercise. If your gym has a bike, you can ride a bike. If there is no treadmill, you can run. If you can't insist at first, turn the treadmill to slow walking. How steep you walk depends on yourself. Muscle chest is bench press, and the stomach goes down. If you can still figure out your abdominal muscles, then you are in the gym.