First of all, the material selection and training methods of trampoline are different from rhythmic gymnastics. Most trampoline athletes choose young athletes who are suitable for trampoline practice. Gymnasts and trampoliners choose relatively stocky children, while rhythmic gymnasts choose tall, thin, flexible and rhythmic children, which are different.

Secondly, your goal is to enter the national team, which is not generally difficult. If your foundation is zero and your age is over 10, then I think your chances of joining the national team are basically zero, and you may even have no chance to study in an amateur sports school. This kind of young project needs strict and standardized training from an early age, plus personal talent to practice well. Don't imagine any sport too simple.

Thirdly, if you don't practice, the most common situation is to transfer to other majors, learn culture, become an ordinary student, and do other things you want to do in the future, but you are in good health. Maybe you are good at education, then you can be a coach.