Hello @hpboss84 and welcome to Mayo Connect.
I would be more than a little nervous! I don't blame you at all. Have you had a chance to look around here on Mayo Connect?
I'd like to introduce you to @irishpeaks who has a lot of experience with an ICD. If you care to, click on his name and it will take you to his posts. He's got so much to add to this discussion.
I don't have an ICD, but my advice would be no matter what, do what you are doing...look for information and educate yourself as much as you can about your condition and what your options are.
Next week is pretty quick! Is your cardiologist familiar with HCM and how to treat it?