Later in my career, is A+ worth it?

So, I am a bit of a special case. I originally got an MIS degree back in 2009, but then because of the economy crash, never broke into IT and worked in a different field for about 10 yrs. When I did finally get back into IT, it was in data analytics and reporting. Now, I am back into formal IT working in Emerging Technologies.

The problem I am running into seems to be a loss of or simple lack of, knowledge in IT basics. Most of the formal IT fundamentals I gained from college, I have lost, and any I have retained are a jumbled mess in my own special vocabulary. The difficulty is, I am now in emerging technologies, working towards Solutions Architecture, which crosses over into all areas of formal IT, and I find myself getting lost from time to time with jargon or what should be simple concepts. Generally its less ignorance of the technology, and more ignorance of the language or specific interconnectivity of technology I get caught on.

Being 17yrs into my career, now 6 years into IT with 3 with Data Analytics and now 3 yrs in Emerging tech, I don't really care about the actual certification part of A+, but am more thinking about doing the A+ certification course to rebuild that foundational IT knowledge that I have lost or never gained through my experience. Would this be a worthwhile exercise, or is there possibly a better way to accomplish this without years more of schooling?

Note, I am too high paid, with expectations of my output for me to try and drop back into doing a rotation for a few months to a year in-order to gain that experience in a more natural way. This is similar to how a new hire or intern would gain that experience, and as beneficial as that might be, its kind of out of the question in my particular scenario. The products I work on at the moment are primarily geared at strategy, future trends, research, and presentations with C-suite. However, like I mentioned, I am looking to pivot more into that solution architecture space, which is why I am trying to fill gaps in my experience.