Don't do it! This hobby will consume you. All you will be able to think about is gravity levels, yeast strains, hop profiles, etc.
If you choose to pursue this hobby, get a notebook and take thourough notes on each one of your beers. Study the directions/your brew plan before you start, then get everything together and go over it one more time. When I first started, I thought it was a little overwhelming with trying to get the timing and temps right. I think my brewing got better when I just relaxed. There is a saying Relax Don't Worry Have a Homebrew (RDWHAHB), remember that. I think a lot of people can over complicate things, when its actually really simple. Your making sweet water and dumping yeast in. Once you get that part figured you can always make this harder and harder to make better and better brew.
Welcome to the obsession, have fun and let us know how it goes!