I am going to start a tumbling class for fun because I believe that it would be amazing and vey exciting. i know how to do a round-off and a cartwheel, and i am very flexible, any advice?

It will be exciting to be involved in tumbling and you will learn some great skills. If you can already do a round off and a cartwheel you have a great head start. But be prepared to be sent back to basics at first anyway. It might seem annoying that you can already do these skills but are expected to go back to the begining and releard them again. But this is super important because now you have to do the skills in a certain way to be able to progress past them. Your round off needs to be done with incredible technique to do a great round off back handspring. You will probably spend at least the first 6 months working on skills that you may find easy like cartwheels, round offs, walkovers, forward rolls, backward rolls and handstands. But don't worry learning to do these things well will soon lead to handsprings, aerials and flips so hang in there even if you find it boring initially. It will be worth the time.

It's great that you are very flexible, especially for doing skills like walkovers. But flexibility is not the only thing needed to be a great tumbler. Even more important is great strength. Again you may have to spend a lot of time doing not so fun exersizes to build your strength but again hang in there because it will be worth it in the end. The girls who work the hardest on their conditioning tend to pick up the tumbling skills the fastest. The girls who cheat in conditioning will wonder why they aren't learning the new skills.

Be careful of your wrists. When you fist start tumbling you can experience pain in your wrists. This is because you will spend a lot of time on your hands which your body won't be used to. Make sure you strech your wrists before and after classes and at any chance you get during class. If you find you get wrist pain let your teacher/coach know and they can suggest wrist strengthening exersizes to do at home. You may also like to strap your wrists for class to help support them.

Be prepared to do lots and lots of handstands. The handstand is one of the most important skills in tumbling and great handstands lead to great handsprings. make sure you pay close attention to your handstand technique.

Most of all have fun!