So I just started Grade 11 two weeks ago and I've been told by my seniors and ppl who have already graduated. That I should keep a planner to keep track of assignments and stuff and also revise every day. But I've just procrastinated every day in writing my notes and stuff. So, first of all, how do I start a planner I don't really want to spend much time. and like some tips for A levels. And how will I know how much time to dedicate to which subject. I'm takind Maths, Biology and Chem for A levels and ICT for school exam.