I think tutoring software designed on a tictoc like platform. It would hit all your dopamine centers and keep you engaged but actually teaches you a whole field in micro lessons.
> Musical.ly Inc. was founded by long time friends Alex Zhu and Luyu Yang in Shanghai, China.[7][8] Before launching Musical.ly, Zhu and Yang teamed up to build an education social network app, through which users could both teach and learn different subjects through short-form videos (3–5 minutes long).
https://en.wikipedia.org/wiki/Musical.ly
> Musical.ly Inc. was founded by long time friends Alex Zhu and Luyu Yang in Shanghai, China.[7][8] Before launching Musical.ly, Zhu and Yang teamed up to build an education social network app, through which users could both teach and learn different subjects through short-form videos (3–5 minutes long).