Ripple Stitch

I'm like a dog with a bone.I'm trying to learn this stitch and I'm at the point where I've unraveled it so many times the yarn is turning to string. I've even gotten a few inches done, then a mistake occurs (how I do not know) and I end up trying to correct it, then undoing it, and swearing a lot. I WILL learn this stitch. No matter what. I hope.