hi, a small suggestion if you dont mind, try to change the color of ur in-content ads to other color differ from your text color, i believe it would increase the CTR.
I think that ads color should be like menu bottoms color. For e.g I don't see ads if they are in other color.
Yes relate your content to a subject that is both of interest and has high competition in terms of advertising.
don't worry, this is happened ! on that day, u must have good page cpm and ctr don;'t worry, i got many times see my page http://alisoft7.blogspot.com
Not bad, don't being too obsessed with the clicking and earning. Remember to build up your contents and backlinks frequently!
That's great earning and I wish you will carry it whole month! If you are using Content of other source then I advice you also put some unique content too if you can write, it will be good for you too!
Rohit currently I am using the mixed content, some content from other sources and some of my own. I am planning remove the entire content taken from other sources after my exams.