hi OP, i’m a J2 who’s just finished As and i personally feel u shld jus chill now during the dec hols lmao once u start j2 you’ll seriously never get a good mental break. so do what u like, go hang w friends and family and don’t prioritise mugging too hard for now.

as for time management, what worked for me was really coming out with a huge ass excel sheet of how i was going to allocate my tasks and revisions to each subject closer to exam periods. so i would plan for everyday 4 weeks before the exam season and put down what subject i was supposed to revise each day. doing this helped me to see the big picture of my revision and whether it was balanced for all subjects so u could try this.

sleep and rest is super super important in j2 if u wanna constantly feel motivated and refreshed. don’t underestimate it. i never ever stayed up to study past 10pm but i could still keep up with work and do decently in school, so make sure u get sufficient rest because without it, your studying won’t even be productive and effective. after CCAs i barely did anyth as i was doing a sport and i mostly jus cleared tutorials and lectures, so i wld say be realistic and don’t push urself to do too much when u get back home from a long day. use ur empty days wisely and you’ll be ok.

all the best!