The easiest way to practice somersaults is to do somersaults forward. First of all, you should learn to flip on your hands. This is the first step. You can get rid of it if you are skilled, that is, you don't need your hands. Of course, there must be: soft grass, (grass-paved land is also acceptable) and bunkers. This is a requirement for the venue, and it is also one of the conditions that can make you improve quickly.
It's not difficult to have someone around and a place to practice. After exercise, you can try to turn forward. Use your hands when you turn first, so it's easy to turn. Later, I let go, not too big, but steady, standardized, and let people help you turn. It takes at least 2 weeks to practice handspring.