In fact, the following answers are too one-sided, whether it's a fitness instructor, a chef or a car mechanic. If you learn well, everyone can become a talent. Who said that the development of auto repair is not good? If you just want to open your own shop in the future, auto repair is more reliable than fitness. However, please consider it according to your own situation. In the early stage of auto repair, it must be dirty and tired, and fitness must be more tired. At the same time, be sure to control your mouth, don't eat a lot, and don't drink. Strong physical training can't be done just by talking. Go outside and run 10 km, and then see if you want to choose fitness. I am still young and can learn a lot!