Hello solitude_is_bliss: (I'm sorry... I don't know what 18F/FL is.) I'll just mention that, prior to retiring, I was a vocational rehabilitation counselor. So I guess this is sort-of up my alley, as the saying goes, although I will say that it's been quite a while now since I was actively involved in the job market. So I'm not up-to-date with regard to what's happening in the job market today.

I obviously know next to nothing about you. So I can't give you any specific advice. And I don't know where you live, or what the job market is like there. But, if you've been applying for jobs for 2 or 3 years & coming up empty-handed, then my inclination is to say there's something wrong somewhere. I can't know what it is. But something is raising red flags with employers you apply to.

You list your location as being in the U.S. So I assume there must be some sort of state employment services office in your area. Have you had an opportunity to talk with any of those folks? Are there any not-for-profit agencies, or community colleges for example, that offer job seeking skills training classes to the public? Somehow, I would suspect, you're going to have to find someone where you live who is knowledgeable with regard to the job search process. Then you're going to need to sit down with that person & figure out what's going on. At least this is my thinking with regard to your situation as I understand it.