I remember when I felt this way.
knowledge is power. The more you understand what is involved, the less scared you will be. It's actually quite hard to brick your phone. I lurk over at the "all things root" subforum, and NEVER ONCE have I ever seen anyone brick their phone. Get stuck? sure, but nothing that can't be resolved. Lots of good info over in that forum if you ever get brave enough to start the process.
And once you're on the other side, you will wonder why you didn't root on day 1