Rent a drywall jack from your local tool rental (professionals don’t use them, but first timers should). Get some help. Small jobs about three is good, two to put it up, and one to fetch things as needed. Change places so no one get a sore neck. The jack will hold the drywall in place for you while you use drywall screws to secure it in place. Do not leave space between the panels, they should be flush and touching along the entire edge. Holes are easier to avoid than fix. If you have some damaged panels, use the good ones first, save the damaged ones for cut pieces and only use the good edges. Don’t throw away any pieces until your done, you may need them. (because you have no experience) When you have the drywall in place, move it a few inches away from the wall and make a pencil mark where the studs are, snap a chalk line (so you know where to put the screws). Work your way along the wall before starting the second row. Cut the first sheet of the second row in half, this will stagger the seams. You do not want a four corner joint anywhere. Do not put screws any closer than ½” from the edge on 5/8” or thicker (recommended), and no closer than 1” on ½” or thinner. The screw heads should be just below the surface (countersunk) without tearing the paper. Place the screws about 1’ apart running down each of the studs. Don’t be surprised if it takes a long time to get the first one up. This is the base for the rest of the ceiling, and needs to be perfect.