I don't really have any advice as I have struggling learners at the moment myself, mine are struggling mostly in my personal opinion due to having experienced so many tragic events in their lives. (I know many people have experienced tragic events and still done well in school, but I don't believe everyone is the same, my daughter is doing well at the college level now, but my two youngest are struggling especially my youngest).
I will pray that God gives you the wisdom to know what will work best with your family, and that he helps you to find the resources you need.
I do believe that those who have already responded to you have offered good advice, and I also believe you will find a lot of helpful information on this site, and encouragement.