Frusteration

I have spent hours, days, weeks, on figuring out how to get this site up and running. I am so close to throwing my hands in the air and screaming "I am incapable!" How can so many step-by-step, simple instructions followed to the last character not bring about the desired result? I have been working to get a custom domain and have blogger still because I love blogger. But I am losing the battle of mastering the custom domain. I can barely log on to it. And once I am in, I can't seem to find a single place that indicates I can begin doing anything on it without purchasing twelve more items first. I am needing help. Big time.