Good advice from Genghis.
Beware grinding to a halt even for a few days. It becomes to easy to say 'tomorrow'. Stick to a routine, and forget about all the other stuff you'd much rather be doing.
I was often quite surprised to find myself enjoying the study after the first 20 minutes of 'oh no!'. Then go on to put 3 or 4 hours in happily enough.
I found listening to classical music helped as well.
Good luck
LF