Maybe instead of doing exams rn do topic question compilations like smarter math or excel topic by topic to get more exposure to hsc/exam-style questions without the pressure of exam conditions
Also what do you mean when you say “easily be able to do it” since ifl if you can easily solve the...
anime: aot peak (jjk, deathnote, first episode of to your eternity and oshi no ko are all good too)
manga: haven't ready any 💀 (only read solo leveling the manhwa), however, i've read some blue lock and that's pretty good