I procrastinate some more but do it differently each time.
I try to put all my distractions away and anything that makes me happy (like my iPad) then reward myself with those things if I've done a certain amount of revision. Just working towards targets, being in a routine and rewarding yourself for hard work helps
Website blocker so I'll keep of tsr, digital spy and daily mail
Reward myself with TV
Todo list - I have one on my phone that insults me but at least I get my stuff done
It can be tough getting down to working. Good luck with it.