Here are a few websites to give you some revision tips. They can be summarised as follows:
1. Make a plan*
2. Get on with it**
*A good plan is: made well in advance; realistic and includes breaks; aware of your strengths and weaknesses; covers everything; colourful.
**Don’t just think about revising. Imagine how you want to feel before you go into the exam (i.e. “I worked hard and did my best”). Don’t panic, and just do it.
Revision planning (quite a long article, but if you read the whole article, you’ll be doing some Paper 1 revision along the way):