Thanks for posting this.
I thought I was the only person who got anxious.
I have beta readers, and if they are enthusiastic I feel encouraged, but beta readers are different from reviewers.
And it's not fear of getting poor ratings, but fear that somehow I failed to connect with readers in my writing or that readers don't get what I tried to do.
I truly enjoy reading reviews, including the negative ones, because I think they teach me what I'm doing wrong, and I want to improve.
I try to use reviews as learning tools also. My problem is that they are so often inconsistent. For example, I've seen pairs in which one said "action-packed" and the other said "slow moving"--on the same book. My first novel has some critical reviews, but it was rare for them to agree on what they didn't like. A few of them did agree in quibbling with the voice of the MC, but even there, they were inconsistent. The MC is a teenager with the memories of hundreds of earlier lives, and I got hit from both sides. "He doesn't sound enough like a teenager" and "How could someone with that much life experience sound so much like a teenager and be so impulsive?" (Having taught high school for 36 years, I probably had a better idea of what teenagers sound like than the average reviewer did.) And a number of the positive reviews talked about how authentic the teenage voice was. One mother said something like, "The dialog sounds exactly like what I hear coming out of my son's room when he has friends over."
It took me a while to understand just how subjective our perceptions of literature really are. Sure, authors sometimes love their own babies more than anyone else does, but that subjectivity is hardly confined to authors. Even bestsellers have their detractors. I was especially amused by the divergent responses to
Ready Player One, both the book and the movie, ranging from "brilliant" to "garbage."
Nor is that subjectivity confined to customer reviews. When I was still getting editorial reviews, I noticed that they differed by almost as much. I've had the same experience with editors. Two books with relatively similar style would get radically different critiques from two experienced editors. I've even gotten divergent advice from two editors on the same manuscript.
When I look at reviews, I look for patterns and try not to worry about every outlier--because there inevitably will be outliers.