When I realize what one of my main fears is it sounds ridiculous: copyediting. I am in fear that the book will have things I have to fix on the technical level of citations, etc... and that I will be bored and hence careless in doing this work.
From this I derive a new insight. If we can relabel fears with ridiculous labels, they will not be as frightening. You are afraid of copyediting?
In a dream last night I dreamt that someone was criticizing me for various things. One of them was my lack of skill at riding a horse. Apparently she had seen me try and noticed I was a bit awkward on the horse. I responded very logically: I rarely need to ride a horse, hence this lack of ability is largely beside the point. Moreover, because of this irrelevance, the only reason to bring up my clumsiness has to be deliberate cruelty on your part. I am perfectly aware that I am not an expert or experienced rider, and do not care. (In fact, I have only been on horse once as an adult.)
Apart from the merit or lack of merit in my musical compositions, what amazes me is that I can do it at all. Just to be able to say: I wrote that. At one point I wanted to take lessons in song-writing, but I have just realized that what I wanted was reassurance, someone saying: yes, that is indeed a song. This, too, is ridiculous, since I know that it is so already.