Hello Atique,
Good to see you pal. I remember your G.C struggle back in the day. Your postings used to be really depressing lol. And now it is finally happening for you. But let me tell you this, N-400 process is so smooth and quick. Nothing compare to what we had to go through for G.C. You will be a U.S Citizen before you know it.
Interview day tips:
* Take the day off if possible, try to relax (I know it is hard to do).
* Gather all the supporting documents and have them ready 2 days before your interview.
* Review 100 questions as much as possible (play that CD in your car, I find it really helpful).
* Take 2 extra pictures just in case.
* Review the copy of your N-400 few times (sometimes officer confuses you with the dates etc).
* Pray before you leave home.
* Get to the parking lot an hour early and review everything before you enter the building.
* Be respectful, make your replies short and to the point, don’t give out extra information.
* If you have the sameday Oath, don't apply for the U.S Passport the same day. They will make you send the Original Certificate with the passport application which I wasn't comfortable with. Come home, make a color copy of it and apply the next day at the local Post Office. Less headache
I am sure you will do fine. Good luck!!