So, yes... It seems the logical explanation of your unsuccess first step.
I suggest u to reschudle in one month. I think u are ready, but your nervse played against u...
As this first attempt is done, u know excatly how is it. I'm sure that u will transform this experience to concrete results. Just pursue to study, maintain and even go deeper on some aspects if u dare so.
U probably felt unconfortable on 1 or 2 questions. Build up your confidence arround it by going on fondamentals linked to them.
> Have u already tried some medecine to make u sleep?
I did so for the GMAT... With an habit to go to bed at 1:30am, I had no choices. I regret nothing.... It worked
I will have a look on the medecine's name and I will send u a PM about it
> Have u always practiced your test with AWA section included?