where are you someone may be local and be able to help point you in the right direction and help you along
Take a deep breath and retrace all the steps in the manual and watch all the videos on
http://www.dji.com/product/naza-m-v2/video for the Naza and then read the manual again and again it seems like a lot to take in but it is worth it in the end when it hovers in front of you for the first time
Make sure the sliders in the assistant move in the right direction
Throttle down slider down--- Throttle up slider up
Rudder left slider left------rudder right slider right
etc etc
And try arming with both sticks down and inwards ( as this is the lower throttle setting to be safer )and gently increase the throttle to 10% or more or the motors will stop after 3 seconds if the stick is on the bottom 10 % of the travel range
the motors will run at a constant speed and will not increase until 1/2 throttle point is reached at that point the craft should rise to around about a meter and hover there then you will have full control of the throttle ( assisted take off )