/sci/ - Science & Math

Hey anons I've been studying math in school and I really liked but I feel the material I have lack in content and exercises, if you have any math material please post here, thank you and God bless y'all

Tell me how to study efficiently.
I want to know every possible thing that could help me.

Summer is fucking hot and is the only time of the year I can relax playing videogames or literally doing nothing. Still, I have to write ten more pages, an introduction about the topic and send it to my supervisor, who will surely wait to reply with corrections on September and will put my ass on fire because I will have less than 10 days to rewrite some parts and send it.
Writer's block is hell.