I used Anki pretty heavily during ~8 years of law school and it was a game-changer. Two things that helped me the most (and that I think apply to any kind of flashcards, digital or paper):
For another approach of keeping a todo-list in a .txt file one may also look at the syntax of todotxt. I use Todotxt.net on Windows for several years now with nextcloud sync and SwifttoDo on iOS and am quite happy with it.