First off, do not panic. It might take you a few minutes, a few hours or if you're slow like me, a few days - but your wii isn't bricked, at least, I don't think so since I experience something like that a few weeks ago. Just read up on the completesoftmod guide as many times as you can. You might not be able to play your wii to its utmost ability during that time, so just find something else to get entertainment while you study the guide back and forth.
The guide is the best thing that ever happened to my wii. It really is a helpful guide, but you really have to follow it religiously till you start to get the hang of it. Make notes so that you won't forget, if necessary. Once you do get a better understanding of it, you'll stop being so nervous about playing around with your wii's system and could even skip a few steps, depending on what you wanna achieve.
tl;dr
Read the completesoftmodguide. read it again. read it again. apply. rinse, repeat.
