get a new Motor!! LOL... .....

No ..just kidding!

Get a Glow Plug wrench and undo it. I think you migh have hydro lock on your motor since it is a brand new engine. Just don't tight your glow pluck too tight and try to start the car. You can use some fuel to prime the motor a little. this may help! make sure your glow plug is good!! (Go buy some extra glow pluck too this will save you some time!)

Good Luck.