Yes, I agree with what was said above. If we could have some details about your materials and how you are implementing comprehension (i.e. narrating or Q & A worksheets) and what subjects you’re doing.
Also, it takes some time to get used to HS’ling w/little ones, so you have to have a plan for occupying them. Many ladies have good ideas for that here. Also, the top two habits that should be a priority are Attention and obedience; if you don’t have those, neither you nor your children will benefit fully from HS’ling experience.
Sonya has free handbooks on habits and other things that may be helpful to you. They can be found on the home page. Also, there on the SCM blog, there are topics that deal specifically with habit development in the young as well as other topics that would assist you.
Looking forward to helping as much as we can,
Rachel