you could build a pow kicker, or take some gymnastic training those coaches are good. Think of it like a injury or broken car when its broke you bring it to a Dr or Mechanic. Well some times you have to bring a trick in to get it fixed.
but i think you need to work on timing and visualization its so key. Timing can be trained as ez as watching some one els hit the jumps and count out the air time in sec, apply that to the timing of the back flip and in your head do the math. small jump=fast back flip big jump=slow flip poppy jump=less flip to do flat jump= you tell me?