Someone please help me

I am currently building my PC , im not 100% sure ive connected everything where it belongs but im pretty sure it is, i tried turning it on and their is no activity whatsoever, no fans no noise nothing is moving whats going on!!! 

Switch on back of power supply? Power in outlet?

tried that already

Make sure the 4 or 8 pin CPU power is plugged in, and the 24 Pin power.

and have you made sure (refference the mobo manual) that the power button leads are plugged into the correct pins?

Yes I have 

Well you could start troubleshooting by by making sure your power supply works.

put it in another computer or

Just connect the green wire on the 24 pin mobo connector to ground(black) with something like a CD drive or something to confirm there's power.