find a calm and quiet place to study
keep yourself calm and relaxed
do yoga or meditate and exercise to keep your mind fresh
prepare timetable for your studies
keep water near with you
eat dark chocolate as it is very good for memory power
arrange your study table in a neat and clean manner
write down the answers once in paper and make it into short
understand and learn
writ the notes on a paper and study
test yourself how much you had learned
follow this!
it would be helpful for you