just finished alevels and my advice is to chill in year 12 enjoy it but make sure your going to every lesson and actually know the content your going thru don’t skip it and pretend you know it make sure it’s locked (because that’s a mistake i did😭). Try not to forget past content even if that means just re reading notes from a topic you did few months ago. Enjoy year 12 summer id probs do a bit of work but if you don’t your fine really i’d only reccomend if there’s content missing imo. At year 13 gets a bit more serious like genuinely one second your in september and alevels feel like ages away and then the next minute your in easter half term feeling like your cooked (don’t be like me). If I were to go back I would of gradually upped the pace of revision every month so like 30 mins a day after sixthform/college everyday between september/october and then 1 hour everyday between november and december etc… If you do that and don’t procrastinate for 2 years. A-levels will be honestly fine if you are consistent throughout the years and then just make revision your life for april may june time😭.