Well the main reason why it wont come out is due to your speedo cable un do it from the gearbox or you wont get the cluster out.
Make sure you have taken every screw out, and if there is stuff attached to the cluster like air vents/controls(leverthings) make sure they arent holding it back if so unscrew em.
Check for bolts holding shht in but you will get it off.
I have now taken my dash off about 6 times i have heaps off screws left over jks