You gave a part question. The question I have is whos training material are you using??/ I work with a pro trainer who FF a dog twice a day, and that depends on the dog. He does not do any other training till the dog is through the FF/hold. Do one step at a time. When the dog masters the skill move to the next training area. Start with refreshing the training that the dog has skilled.
Good luck and go slow
Enjoy the day
Jim Schaefer