Aim to finish syllabus (on your own) early then practise past papers.
Be consistent with your revision - start revising from Lower Six itself.
Allocate your time between the different subjects well.
Stay focused and minimise distractions.
Follow recent economic news and use them in your essays.
Practise as many papers as you can and consult this website https://www.examsolutions.net/.
Practice as much as you can!
Keep up to date with the latest economic and political news.