Read the instructions re what should be open in terms of vents.
Get a lot of small kindling and select some small split logs. Roll up and loosely knot 3 or 4 pages of full-sized newsprint. Lay these at the bottom making sure you can reach some of the ends of the rolled-up bits.
Lay the kindling all over the paper (no logs yet). Be generous, as it's the first time, and especially if the day is still or the room or chimney is cold (ie is there a cold draft coming down?).
Light in 3 or 4 places. As the paper catches, lay a small log or two on top and close the door till nearly shut. Watch to see how it draws. Shut the door gently when you think it's getting going, leaving the vent/vents open.
What brand btw?