As the use of supplements is increasing among athletes, it is highly important to assess the reasons of supplement use.
That means at least 48 hours in between workouts and a maximum of 120 reps of depth jumps or their variations per week. I would start 3 times per week when you are beginning because the intensity of the exercises is much lower so your body can handle it rather easily but as you become a more advanced athlete I would stick to 2 times per week of high intensity low volume plyometrics such as depth jumps and sprints. Standing firm in any discipline requires determination, motivation and committment.