Hi Tarun,

for any such competitive exams motivation is very necessary. And more then motivation, self motivation helps us out in such a tough time schedules of your preparations.

All you can do is as follows:-

1.make a proper time table for each subject and strictly follow it.

2.avoid things which increases your distraction.

3.limit your tv,internet surfing.

4.go for outing every sunday with family/friends.

5.avoid contact with self obsessed and negative peoples.

6.read some good books which are filled with content of motivation.

7.have self confidence.

8.join some library/coaching.

9.do meditations.

10.know your worth and intrest.

So, these are few steps which will help you out during your exam preparations to be concentrated and motivated.

Good luck.