I would advise wait for your course.
There’s more to nails than banging out a shape. You need to learn about safety for yourself and the client, how to prep properly and build a nail that not only looks good with correct proportions but that will last - it’s relatively easy to “do” a nail but not to get one that will last. Also, how can you practice when you have no idea if what you’re practicing is the correct method? Just have a little more patience [emoji4]
Congrats on booking your course and good luck with your career