Being a father can be a wonderful thing, once you get past all the gross stuff, all the stressful events, the loss of privacy, and the bewildering numbers of ways you can screw it up. But other than those few things, fatherhood is wonderful. Every dad has fears that he won’t be a great dad, that he’ll mess up, that he’ll be a failure. It comes with the job. Unfortunately, what doesn’t come with the job is a simple set of instructions. As guys, we often will skip the manual, figuring we can wing it … but when things go wrong, it’s nice to have that manual to go back to. Fatherhood needs that manual. And while, as the father of six children, you might say that I’m qualified to…