Personally, I think you should start with the basic knowledge of English grammar (from junior high school and senior high school), then preview the text, explain the text and supplement it with questions. It is best to explain a grammar or knowledge point, do relevant exercises, have strong pertinence, and students will be confident. But make sure he recites grammar and knowledge points. You must keep up with your exams.
Mathematics is mainly to preview new lessons, involving previous knowledge points, so I will sort out the theoretical part for her = students to recite and explain relevant knowledge.
The key problem is that you have to arrange your own time before you can determine your own progress and content.
Landlord, I hope it will help you.