reading the material, making notes, then doing the QBs, and reviewing the material where there was deficits. I also made an Excel file with all the formulas for quick review. All-in-all, this is probably the most time consuming method, but it worked for me at the university many, many years ago
Unfortunately, you live and die by the QBs. I think it is all about time management and setting goals how many hours you can do each week and sticking to it.