Find out what works for you.
Having a place you can go to get your best work done is so important.
Make sure it is quiet and that you have enough space. If you are struggling to find a quiet space try listening to music through headphones whilst studying, this should block out any background noise.
Keep a clear desk and only have what you are revising for that particular revision session on the desk. A clear desk is a clear mind.
Don't multi task, focus on the task at hand and get it done with focus and determination!