Patience is key, in my opinion, because you really have to take it slow and think ahead. Even small decisions like, "I'm going to cover the fermenting bucket with some aluminum foil after I pour this cooled wort into it" doesn't seem like a big deal, but when you make the mistake to unroll the foil over the open and full fermentor and while you unroll the foil you accidentally drop the box of tin foil in the wort, that's a bad mistake that could easily be avoided with a little patience and thinking. Whoops.
Also, plan ahead big time. I create a detailed checklist for the day - everything from the temperatures you'll need to maintain, to the time of the hop additions, to when to start preparing the fermenting bucket to be clean. This is true when you are thinking of brewing a new homebrew too, because you want to plan ahead to what you are doing - IE. you don't want to start making a Pumpkin ale in mid-October.
Lastly, I would really suggest keeping a good notebook. I take notes on my checklist (see above paragraph) during the brew day, and usually a day later I sit down and write everything I did into a beer journal. Everything from ingredients, to the time it took for me to get my water heated to a boil, to where I placed certain equipment in the kitchen, to when I started cleaning certain items. Small stuff like that helps you become more efficient and learn how to improve. Each time I brew I look back in my journal to see what I did on previous beers, and improve from there.
Have fun. I enjoy a homebrew after each brew day is finished and I have cleaned up.