I need some serious help with ClockWork Mod!

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http://androidforums.com – OK, so I am contemplating installing the CWM on my phone so that I can TRULY do whatever the hell I wanna do on my phone. I have read the tutorial several times and have even checked out a video, but there's one serious problem: I AM A COMPLETE n00b!!! and don't understand half of what is in front of me. I am extremely worried about bricking my phone and losing everything. But at the same time, I'm not too content with sitting on a rooted phone with so many possibilities, but no resources. Can anyone provide me assistance? I know that I've been a nuisance these past few days, but what are (General)