How long has it been since the author liaised with academic publishers?

Choices:
A. it was five years ago
B. not enough information
C. almost 20 years
D. it was a year ago
almost 20 years
I am currently waiting for peer reviews of two books I’ve worked on: one sole-authored, one co-authored. We don’t talk much about the experience of waiting for reviews, and it’s not something that appears to have been researched. Yet it’s something everyone doing academic work has to go through and it may be bad for our mental health.
I’m finding it particularly difficult at the moment because a lot rides on these reviews. The sole-authored book, which is on a contentious topic, has already had one set of reviews. Reviewer 1 was utterly damning, saying “I couldn’t find anything to praise”. Luckily, Reviewers 2 and 3 were more measured, offering both praise and constructive criticism, and their input helped me to revise and strengthen the typescript. However, in the process, my editor and I realised that we needed further reviews from people with a particular kind of specialist knowledge. My editor approached around ten potential reviewers, but only one agreed to do the job. So I’m gibbering – what if that person agrees with Reviewer 1?
The co-authored book is in a contentious format. My co-authors and I decided that I would be the person to liaise with publishers, as I have form in this process. The last time I liaised with academic publishers for a co-authored book was in the early 2000s, and I’d forgotten how heavily responsible it makes me feel. Fortunately, I’ve found a publisher that is interested and has sent the book out for reviews, to two professional academics and two students. This is great – and terrifying – but at least there are four reviewers. Even so, what if they all think it’s rubbish?
In many ways I love the peer review system. I welcome feedback on my writing, and I’m not at all averse to constructive criticism. I am by no means arrogant enough to think I can write a good book without input from others. Yet peer review, as a process, is fraught with uncertainty. Comments may not be constructive, or may not come at all. They may be positive, or negative, or in between, or a mixture.