Is it even worth sinking back down into a CAD monkey career? Keep in mind I'm not an ME. Maybe spend some time learning Solidworks (I'm a Rhino guy)? Frankly, I have zero interest in investing in a skillset in a different part of the market that's impossible to get any employment in. Whatever new software I learn, I'm still not going to have shit for experience in it. Heck, no one considers me for CAD work in platforms I already have experience in (aforementioned Rhino, AutoCAD).
Not a fan of small scale. I'm a unmarried guy more into the gentrifying parts of big cities.
There are CAD jobs out there, and if you've been mostly using 2D or surface software then knowing a proper solid modeler like Solidworks or Pro E would be important to a lot of fields.
There are draftsman jobs which are just about creating 2D drawings etc, but most of those are fairly low paid and more about supporting an existing business outside of a design career (a friend of mine moonlights by doing CAD drawings of commercial electrical boxes and then having a mechanic friend fab them for him after hours for example).
At the end of the day though, people in this industry get hired based on a portfolio, and attitude. Saying you have zero interest investing in a skillset is not the right attitude to have. I regularly invest in skillsets I may or may not ever use because I enjoy learning new tools, processes, programming languages, just for the technical challenge. As it turns out, eventually those skill sets can become valuable and you don't need to worry about ramping up, you can jump into a project and say "oh by the way, I know how to prototype this from that weird time I learned Arduino in 2012".
Investing in those skill sets also has the side effect of allowing you to grow your portfolio organically. Side projects that you do can now become showcases of your process and skills, making you more interesting of a candidate.
I interview a lot of people, and I've sat across the table from rock start designers who I've let walk out the door because their attitude was shit, and it comes across as very apparent. I had a recent candidate get mad at me because he was clearly the most qualified, but simply put I couldn't see myself dealing with or interacting with him on a regular basis - he acted like employment was a drain to his life energy and he was doing me a favor by even offering to come in. Likewise, I've given under-qualified or inexperienced candidates position based on a clear sense of them being outgoing, optimistic, and eager to learn and grow.
I can't make you to change your lifestyle and attitude over the internet, but it may be worth some soul searching to see what would actually make you happy in life and figure out what steps you need to take to get there. Slumming along in a low level CAD job just to pay the bills isn't going to make you any happier in the long run.
Serious side note: Anyone who knows me in real life knows that I am a sarcastic SoB who spent most of my early life dealing with substance abuse and depression. So it's extremely ironic for me to be preaching an optimistic attitude, but I have had a lot of time to reflect on myself, my career, my actions and use all of those as a means to grow personally and professionally. Looking back now I simply wish I had realized more of that sooner.