Some of this has already been addressed but:
- For english, make sure you have quotes that cover a range of different themes for your text so you can better adapt to a question. E.g. don't just find quotes for belonging to family, make sure you are also prepared for belonging to friends, culture, society, etc.
- For physics, when your doing notes try to get them from a variety of sources because some textbooks may be lacking in their description for particular outcomes. Also, I think its important to understand the concepts, not just rote learning an answer to a particular type of question.
- Maths = past papers.
- Be organised: have your notes up to date, have papers from class organised in folders, etc.
- I found working towards small goals was better than studying for a certain number of hours (as LoveHateSchool said)
Best of luck!