Most people have some difficulty getting gel to the hair in their canopy. With broken hairs, it would be particularly difficult. So I would suggest starting your gel application by skimming your hands lightly over your canopy before flipping your hair over and scrunching it in.

I also agree that deep treatments will help, but I think that more targeted gel application should make a big difference.
Peace,
Morgan

Baby Fine 3B, low porosity, normal density and elasticity
CGing since July 2008