Panic attack

So, I don't think I've mentioned that I will be taking my ACLS(Advanced Cardiac Life Support) class in just two short weeks. In the past I've avoided jobs that require ACLS certification. Somehow I've ended up in a job where it is required. Not only required but necessary. I've heard "stories" where patients have stopped breathing and require bagging and drugs and whatnot. I've been trying to read "the book" but it's so boring and seems to be written in some language that I don't understand. There is a reason that I haven't gone back to school since nursing school. I'm too old to learn anything new. If I flunk this class the humiliation will be overwhelming. I need to study, to learn drugs and doses of drugs and read cardiac stips and save peoples lives. I will have to lead a "mega code". To any future patients who might be depending on me to save their lives.....sorry......