Dont worry at all my friend. We all are on the same path., same fear, same scaring.
Dont go for any other activites, just go through once what you have done till now and what needs to be prepared and what is important and unimportant in the topics u have left so far.
Boost up urself. Mostly reduce the wasting of time. we know sometimes , time will go on even without our interruption but we feel time is wasting. Realise of that simple words
ouJust go on with your preparation. Dont think of the result what ever we may achieve thats for your good only, what ever you have lost also for your most good only.
Believe these words. You will be the best. Think over, you may lose for the first time second time third time but you will get sucess one day then all these lose attempts are nothing for you.
Success may be late but you will be the king in subject by attempt to attempt and you will come to know a new point on that.
I wish you all the success my friend.
Thanks and Regards,
A.Jayasri.