How can you make basketball practice as efficient as possible. So I can improve the fastest.?

I know I have to practice. I want nobody saying that I need to practice. I only need help with planning practice so I will be on the fast track to success. If you are a coach online prescription drugs give me some help. Plus I play on the middle school B-team, but I want to practice at at a proffessional or College level. I also want advice on planning and guidelines for the whole practice and all skill involved with basketball.