Appearing for the first time. Initially I was thinking about appearing in 2016. But as per parents wish I'm going to attempt this upcoming year. I know I have short time but I think I can do it. But I'm having a little problem with finalizing my optionals. So I'm open for suggestions from seniors.
Psychology
Public Administration
Journalism
Sociology
International Law/Sindhi (this is where i need a little help)

I don't have enough time. And have to go through a lot of books so I am looking for a subject I can cover in short time. I like International law subject and I think it will definitely help in my other subjects including Current Affairs and Essay. But I'm not sure if this subject can be covered in short time.. well, if it can be then guide me in this regard.. I am not much interested in Sindhi subject even though it's high scoring so please help me out in here.. thanks

And about your Essay preparation question:
In first few days I'm going to work upon techniques of better writing. Then I'll proceed towards making a probable list of topics/areas where I should be focusing. Then after reading and collecting data (as fast as i can) I'll move towards daily attempting essays on those topics (I won't select topic on my own, my friends will.. so I won't know what topic I am going to get). At first I am going to give myself 2 and half hours for completing essay and then I will try it to complete it within 2 hours so that in exam I won't have time management issues which I often face. As far as source of reading is concerned I will refer to Newspapers, JWT, and contemporary affairs book (for background for some evergreen topics).