No birthday dunk

I went to the gym yesterday with hopes of dunking on my birthday which was my goal from the very beginning. I was not able to do this but I feel like I am pretty close and should get it down within the next 3 weeks. Things are going to change next week when school starts and it will be hard to train. We hit the weights hard 3 times a week at school so I am not sure if I can do jump manual after school without overtraining or being too worn out to so it. Jump Manual says not to incorporate jump manual with any other weight training so I am not sure what to do. Anyone have any suggestions or thoughts about this? Anyways back to what I was talking about. I feel like I am pretty close to getting a dunk and I actually grabbed rim off of my standing vertical for the first time!! There was also a basketball about the size of a girls ball but it was a little flat where I could have a good hold on it. I missed several dunks due to the rim popping and hitting the ball but I did get it down once pretty good. Once again I was in the gym alone so no video and no adrenaline. Right after I dunked that ball the first time a friend walked in and I said "watch this" I went up and jammed that ball!! Not just a dunk but a dunk with some force behind it! Now I just got to get where I can dunk a fully aired up mens ball. The new goal is to dunk 1 hand by September 17 which is 4 weeks. Next week I am not sure I will get any workouts in being the first week of school and I am going to try and see how the in school workouts are going to be and how I can incorporate jump manual. So actually I should have about 3 weeks to get the dunk down. Hope all goes as planned, need to get there soon!