I’m sorry you are in this situation.

aeh’s advice is good. Get a schedule in place, a dedicated place to work (or two, if you have them) from the beginning. Some exercise in that schedule might be helpful for both of you.

Although, it is true that many kids here may do their work very fast, if your child is a perfectionist, or distracted, they may require more supervision.

Can you schedule alone time in the evenings or weekends?