Its not about how much you study or which course you have done. Stop thinking about that. Think about the positives:
a) What are you good at?
b) Look at GMAT as someone you are going to have a fist fight with. It is going to throw around a few punches but you can duck (equivalent of intelligently guessing), take a few blows but keep your morale high (there are 7 experimental questions in Quant and 11 in verbal, so taking a few hits will not do anything) and knock the hell out of the exam.
c) keep visualizing how you will feel when you walk out of the test center with great marks. Just let this positive thought be the fuel you need to keep your mind active.
Dude, negative thoughts are self-reinforcing. What I mean is that these thoughts keep playing in your mind without any conscious effort. So keep picturing you are the king and you will be fine.
you have been studying from a year ..so even if you don't study for the last 10 days nothing is going to change a lot. Keep working on any interesting things....like go through the forum, look at some of the questions, look at how people answer them.
Keep your chin up. Take it easy!
I became emooootiooooonaaal)