There are a few different things you can do to continue your driving improvement while you don't have a license.
➜ You can study different resources online.
➜ You can join a Driver's Education class, whether it is a part of your school or a different school entirely.
➜ You can get a Learner's Permit to practice driving, even if you don't have your license yet. Make sure you are driving with an adult [who has their license] and follow all the rules of the road.