Chooniecat, we're sure you'll do just fine, and continue to get better with each bird you process. Each time I process I learn something new, a better, more efficient way to do things, or have a different knife or something to use. Last session I followed the method as shown by the Custer family in their video and found it to be the easiest time ever. Of course we weren't as fast nor efficient as those Custers, but I hope to be when I've processed as many birds as they have.
The skinning went fairly easy, but you really need good upper arm & shoulder strength to do it quickly. And I liked the way they demonstrated cleaning out the carcass. It helps to remove all food -- but not water -- from your birds's cage 12-18 hours before butchering, so their crop & intestines are as empty as can be. That's the thing you want to be careful to not cut through, the loopy bundle of intestines. But if you do, just give the bird a good rinse with your handy hose. Unless he's got a butt-load of poop coming out, your meat should still be fine to eat.
The Custers' video showed how to lay the bird on his back, cut just through the skin up under his rib cage, and then stick your hand in there & begin wriggling all the organs loose from the sides. In Frugal's great photo tutorial, he shows all the individual organs you can harvest & eat, if you wish. Otherwise, you can do like the Custers & just remove everything all together in one big bundle. If you don't get the pink spongy lungs out with the guts you can remove them later. I just use my gloved finger to loosen it from between the ribs. They finish off by turning the bird over & cutting around the vent & through the tail bone. That's the tricky part, where the intestines connect to the vent, where you want to be sure not to cut through.
Have the ice water handy to plunge the finished bird into, to begin cooling the meat both inside & out. If that water stays cold you can let the bird rest in there for a day, then rest another day in the refrigerator before cooking. Some folks soak their older birds in a brine solution, or buttermilk, to make them more tender. The older the bird, the slower you want to cook him, and the more liquid you want to incorporate, whether by simmering in broth or in a covered roasting pan with a lot of liquid in the pan.
We all wish you the greatest of success, and a very very satisfying meal at the conclusion of it all. Let us know how well things went for you!