There are several different ways to QAYG, and then variations within each of those ways. I found the whole thing very confusing. I took a class at a local quilt shop, and that helped, but then developed my own variation of their method!
I would suggest strongly that you watch lots of YouTube videos and pick one that makes the most sense to you, but try it on something small first...a baby quilt, or a table runner, maybe. Just 4-6 blocks. See if it comes out as you hoped (and that the process does not irritate you at every step).
I am always in an enormous hurry to start the next project, but practicing any new techniques on something small BEFORE launching the actual project has always been highly beneficial to me.