OK, take your glow plug out completely.

Tilt the car on it's two left wheels and pull the starter cord a couple of times to clear the piston chamber. (you may be flooded)

Cover the tip of your muffler pipe's stinger with your finger and give a couple more tugs until you see a couple of light droplets of fuel coming out of the plug hole. Now your engine is primed

While your glow plug is out, hold it against the glow plug igniter, it should glow bright orange. If not, then you either need to replace the glow plug or make sure your glow plug igniter is fully charged.

Put the car back on all four wheels and replace the glow plug, turn your transmitter on, turn your car on, and plug the igniter in. Your car should start up pretty quick.

By your description, I opt to feel you may need a new glow plug. These get fouled pretty easily when the engine is new and it's recommened you always have a few at hand.

Good luck and let us know how it goes.