Tip #1: For chem/bio, correct your exam the day after you do it. You're less likely to try and "fit" your answer to the one given in the solutions

Tip #2: Get 8+ hours sleep per day, errday. No need to restrict sleep, leave that for uni.
Tip #3: Go outside every day. Even if it's just for 15mins around the block. Your body will thank you for it.
Tip #4: Do other things too, study isn't the most exciting thing in the world all the time. Don't feel guilty about watching an episode of Legend of Korra or Suits, feel guilty if it's Home and Away or something like that though

Tip #5: Write an essay every second or thrid day, wish I wrote more during the holidays. Don't write the next one until you have feedback on the previous one, and also don't write so much you end up hating life.
