American Crew pomade is not very good for holding your hair in positions it doesn't want to be in. I use it to give a slightly wet look and define the part in my hair, but the general way my hair falls is the same without pomade. That doesn't sound like that's the case for you. Try a heavier product with a stronger hold. Alternatively, stop shampooing and just wash with water and scrub your scalp; the weight of natural oils may keep the poof from returning.