The 5 Golden Rules that I must follow from Dec till O levels is over.

1. Study at least 1 hour per weekday and 1 and 1/2 hour for weekends regardless how busy I am
2. Only allow myself to play games when I have finish doing ALL my work during weekdays.
3. Change my running style.
4. Eat well, Sleep well, Train well, and NO MORE BLOODY INJURIES.

And the last one is for me to know and for you to find out.