First make a border horizontal or from left to right. Then make another border from vertical or up and down. Lay every row of sod off the first vertical line, and make sure that first line until you run it to the cut off point will be the longest one. You finish each row in succession.
Make sure there are no gaps and no overlays. Some sod does not creep and overlaying sod waste it. before you start to lay the sod clear the area of any debris and put down any fertilizer. The hardest part for beginners is going to be the weight of the grass and also the bugs and spiders.
If it was easy everyone would do it!