Hello Ahmed,
I know the feeling and trust me many of us have gone through this phase. Nervousness is natural!! I was in same situation last friday!!!
However, Most importat point - Mock test is mandatory and we definately cannot ignore it... PERIOD!!!
MY 2 Cents:
1. Mock test - Builds stamina for real exam which goes for almost 4.5 HRS (END to END)
2. Ignore the results since you are in last hours from exam date...Just ensure you take a minium of 2 full length exam ( Again to my point BUILD STAMINA)
3. IMO the questions designed in Simulators (PMP prepcast and almost similar to real exam)
Good Luck!
Regards,
Rohan Panade PMP