I am busy with pedal-jam exercises for my comm.-training and can do hover-position pedal jams okay, but am struggling with left-pedal forward jams. I can manage bringing the machine around to the right okay but struggle with the final touchdown-part. I always bounce it and have used up my "nine lives" not rolling it.

It feels like I am not progressing at all after doing 5 hours of it!!
Have any of you got any tips or tricks on how to fix it? I am training in a 22.