I grew up in the Midwest, and there you learned that, when a storm is coming, you pay attention to your senses. Huddled in the SM's office, I felt the same way, and got the hell out.
Here's what you do:
You realize that you are, no matter what your position, totally disposable. It doesn't matter how long you've been there, what you do, who you know. HR will have it down to an algorithm, and should the metrics point in that direction, you're toast, baby.
You get into the mindset. You love the book trade? So what. It doesn't matter. Because when the axe falls, your love of the book trade has nothing to do with it. You have to bring yourself into the idea that you can leave, and do something else.
Figure out what you want to do. Find a new trade that's interesting to you.
Update your resume. There are plenty of resources out there on the net to do this.
Get on Indeed and Glassdoor and go for interviews. If you haven't done this in a while, do it anyway. It can be scary, but still, do it.
The best of luck to you all.
Couldn’t agree more. This is some good advice from @XwR0Qw1-3wdj that I wanted more people to see.