How old are you? Theoretically, it is possible to improve as long as you train. If you can, you can find a gym and have a coach to train you. But this kind of thing varies from person to person, and no one can guarantee how much it will help you improve. It all depends on your personal qualities. Bouncing is mainly to practice a leg muscle and explosive force. Always touch your height and jump rope to load your legs, which can help you improve a little. Better find a coach. Please adopt it. Thank you.