“The 4-Hour Workweek” book by provides some good advises how to be more effective. https://is.muni.cz/el/1423/podzim2013/SOC932/um/43553173/FERRISS_Timothy_-_The_4-Hour_Workweek.pdf
circuits.io – just a wonderful tool for education
https://circuits.io/ One of the zillion posible projects.
Stepic.org – yet another learning platform
And some recommended courses https://stepik.org/course/Data-Structures-579 https://stepik.org/course/Linear-Algebra-Problems-and-Methods-79 PS Stepik also allows teachers create their own courses.