Buzzfeed has a useful article on 14 Useful Hacks if you hate studying (and to be honest, who doesn't hate studying). Number 1, If you're at home, try not to wear pyjamas while you study is an easy and useful tip. I would go to work in my pyjamas if I was allowed to, but if you study in your pjs you are more likely to be subconsciously thinking about sleeping and lazing about and not studying. You can read the full article here.