Actually that was great practice for when the poop is really coming down, Guy. If this happens again, you will probably be vastly more confident and controlled and less likely to make mistakes because you've got that first-time jitters out of your system at least a little. Best would be to go back, try to coolly evaluate what you did well, and then try to refine your process and place it all into text so you don't have to rely on memory to do it again.
The next guy who screws with you is going to be dealing with a past master.