My quest for dunk

I started playing basketball around 16 years old its kind of late for a high school kid and teenage, i started playing basketball on a court nearby my house, I played with the kids around my neighborhood, and quickly I learned some skills of basketball and I like it a lot, besides learning to do jumper shot, lay up.

One day, I was thinking and wanted to dunk like the player in NBA as I watched them in TV. I felt very excited about it cause I was gonna train to dunk, I was very serious and excited, the next day I went to the court in the early morning with my ball I started doing jumping, I jumped I jumped I jumped, I hope that at least I can touch the rim or something but not even the back board, it was quite discouraged indeed, I tried jumping for few more times and my legs felt sore ( back then I didn't know anything about nutrition) and I was upset, thoughts started coming out like "maybe my body is not good for jumping", "most of the dunker was so tall", "I can dunk if only I have at least 6 feet tall", and lot bullshit came out. I gave up. But that fire still somewhere in my heart, I still played basketball here and there.

Until the time when I was in university, I watched a lot youtube video on people dunking playing basketball, then I found dudes teaching people how to dunk, and I was hooked, I realized that there was a scientific and systematic way to get better at jumping and dunking, and the author and creator also had had a hard time in their past they want to dunk but was unable to do it. So the first one I bought was the Jump Manual by Jacob Hiller, he talked about doing every reps with the most explosive as possible. I thought it makes sense, since jumping is an explosive movement, we gotta train the body to be explosive if wanted to jump higher. Another is the Adam Linkenuger he teaches the techniques of jumping, how to stay tall and be aggressive on the last 2 steps of jumping.
But when I started training in weight room in the campus, I was doing the Triphasic training by Cal Dietz, I thought because it was much simple, since the main template only need train 3 times a week, and it works full body in a workout session.

So I have had 1 year plus training under my belt since I started training from 2013, now I am doing the Vertical Jump Bible workout by Kelly Baggett, I have just finished the workout for intermediate strength, I am trying to get few more days rest then I will do my vertical jumping testing. Wish me luck.