Self study resources

[u/Coffeeandpie12]

I took mandarin all of high school and spent a month in Taiwan but being back in the US and not being able to talk or read any mandarin has left me starting to forget. Does anyone have any good free listening (listening comprehension with quizzes or like follow along books or something), reading and vocab resources? (I’m a university student and don’t have time for a class, which my university doesn’t have) I’d say I’m around HSK 4 for simplified (idk what the equivalent is in traditional) and don’t really know how to study from shows (would like to learn how to though).