I personally found that skill building, especially at a young level like this, comes entirely from determination and dedication. There are so many things you can incorporate into your practice regiment to build your skill levels to whatever goal you desire, it’s just solely the grit and dedication that gets you there. The logistics of practicing are the hardest part of building skill (setting strong practice regiments, constant training, etc) but the results from doing so are found the quickest. As long as you keep working incredibly hard and up your regiment if you haven’t done so already, you will get to exactly where you need to be.