I don’t know if you saw my earlier comments, but I asked my grown kids for ideas because we were in a similar situation with the youngest having learning disabilities and often I didn’t have much time for the others. I couldn’t think of a better curriculum, though Abeka offers options that include them being the instructors so you could ask them questions and they would correct your work, but it is much more expensive. Nathan892’s suggestion sounds good. I remember that I started having my children correct their own daily work while I corrected the quizzes and tests to make sure they were really ‘getting’ it. That really helped them, and I wasn’t so overwhelmed. Also, my daughter suggested a study partner or being a part of a bigger homeschool community if you are able. This might provide you all with more resources. Praying for you and your family. Homeschooling is great, but it can be hard. I think my kids are mostly thankful, even with the difficulties, and most importantly God works through it all no matter what curriculum.
Basketball girl, I’m asking my grown kids for any advice or encouragement they have, as we were in the same situation as a family. Try to get back to you. Not sure of a better curriculum for this issue, unless your grandmother has a former homeschooling Mom with a little time on her hands.