I've been there and done that...twice, in 5 years. Seems no one was willing to invest in an over-45, female, mid-level designer with more than 20 yrs. offset and digital prepress and production experience, at least not for more than $15/hr. Folks loved my resume and my portfolio was solid, but even my barest minimum salary requirements that might cover transportation, much less pay any bills, even that number was too high for me to even be considered for a position. Finally I got an offer that wasn't perfect: part-time, for lower than average salary (but much better than the $15/hr. rate). But it turned out to be the best job I ever had and I was devastated when that gig ended due to budget cuts.
It was another 18 months before I was so desperate that I took one of those 15/hr. freelance gigs, and 5 yrs. later, at 51, I'm into my second year at a full-time job that I love with a different company, at reasonable pay and amazing benefits. But geez, what a depressing, frustrating, ugly struggle it was.
Here's the thing: I had to find needs in the new place I worked, then fill in the holes in my own knowledge of current software and processes in order to fill those needs. I ended up researching and becoming the "expert" leading the company into online proofing software. Then I researched volume production techniques and implemented data merge processes, cutting production time by 30%. Then I discovered scripting and researched that and worked up some funky Acrobat JavaScript Actions that were far from perfect, but automated a couple of basic tasks we had been doing manually. And I did most of that at $15-$18/hr. The agency I was freelancing with had a client who was impressed with the outcomes of these couple of things I worked on. It was a bit of a circuitous path, but they took me on in-house. Now our photo library is a disastrous mess but no one has the time, energy or inclination to do anything about it, but I called out the need and did a lot of research and self-education and have taken on the charge to implement a DAM system.
There's a lot of new technology out there and lots of things to learn that can be applied to jobs that are out there but might not seem worth it on the surface. It's a ton of work and not for the feint of heart, but essential for those of us fighting obsolescence. And it is a fight.
Big things that are out there that could be avenues to something: Automation and scripting, especially in production and pre-press, both digital and offset. DAM technology and processes. Online proofing systems. Workflow optimization. Anything else that you love or even something new that you are interested in learning about, can serve as springboards to something that's out there that you don't even know about. Also a willingness to venture into the less-than-perfect not knowing what it might lead to.
P.S. Medication and/or therapy can temporarily help with the depression, frustration, and humiliation that are almost unavoidable in this situation. It can at least keep those things at bay long enough for some motivation and optimism to seep through to the surface and keep you moving forward. I couldn't have done anything without it.