Low weight high reps or high weight low reps?

I'm 15 and I have a 31 inch vert, my plan to increase it is the following - Get really strong on the compound lifts (squat, clean,deadlift, calf raise, hip thrust etc) - Jump a lot (without getting injured) - do isometrics - sprints Is this good. Let me know if you have any tips for me. Thanks.

Could not max effort be considered junk volume/ harm your vert? Did you ever accidentaly do junk volume in your training? How did you figure it out?

I just watched jump technique #Jump Technique #1 (Basic) in the classroom section and added 2 inches to my vertical within 30 minutes!!! Thanks for the free training!

What should i do to level up please help me 🙏