sorry but you confuse me, maybe the rums talking right now and not me, but you post constantly about jumping and then another method and back to jumping, same sort of posts, you commented on my posts a few times.
if your certain this is the path you want to take, please think carefully first, I have recently seen so many videos on jumping from buildings, they are not easy viewings at all, and seeing peoples reactions around them, wow, I could never personally jump from a building potentially in front of others.
As for SI this is something that can be worked on and pushed to one side, but that is something I am not willing to discuss, will only say from experience it can be done
I wish you the best in whatever your future decides and where your path takes you