But what's the purpose of your fitness? I don't know what your perseverance is, but if you want to keep fit, I suggest you do push-ups at home without spending money on a dumbbell. Take a day off for three months to see if you can stick to it. If you feel good and want to gain muscle, you can consider going to the gym. What gym is not recommended? There will be suspicion of advertising. Ha ha ha ha ha.