Hey bro, welcome. Take some time and read some articles about cycling your training. One main problem I had in high school was that I played basketball EVERYDAY!!! Even if I ran earlier, worked out, had football practice, whatever. You need rest in order to rebuild. Since it's early off season, you should be resting for at least a week of absolute rest. No weights, running, ME jumping, dunking, or pickup. You can do skill stuff, and shoot (always shoot!). After that, I would say have three phases.
Phase 1: Strength Focus - 6 weeks
Phase 2: Power Focus - 6 weeks
Phase 3: Conditioning Focus - 4 weeks
That should get you to the start of basketball in October. So as the season gets closer, you get more and more sport specific focused. Does that make sense? So, there's no point in doing suicides and lane slides right now, you can easily get that where it needs to be later. Work on the size of your engine first, then rough tune it, then fine tune. Hope that helps.