I don't know how your theoretical knowledge is. If you can do it, I just don't know how to practice. I can give some advice to experienced people: start with the basics, first understand the equipment, then look at several operations and details. How do people wash their hands, wear surgical gowns, peel and spread their pounds? These books are not very impressive. You need some surgical threads to practice knotting, and then you need tweezers, needle holders and surgical needles. If you want to practice cutting again, you have to get a handle and scalpel and a piece of pigskin to practice, but that can't be compared with human skin. That's about it. You have to practice more on stage and see the world more in the future.