Well the "dont have a cat in hells chance" doesnt surprise me in the slightest.
Its the story of my life.
But I'll try anyway.
Its either that or I do some dead end job for money I dont need.
Or study something else equally dead end
I think you've just revealed rather more about yourself than you intended.
You mentioned Line engineering in your first post and, poor health along with going for a qualification that would be of no use to you in that environment.
I spent about 25 years in Line engineering, and, luckily, survived with my health intact. I have though, as I am sure others have, met many former Line engineers whose health deteriorated over time and, when they retired, simply withered away.
You are 44 now....with no experience or background....be realistic therefore, do you really think you would get into any position on the Line ?
The Bold is rather telling as well.....are you seriously trying to say you don't actually need money to live as you are self-sufficient ?....or, possibly, you just live a minimalist lifestyle ?....not that either matters because, as I will reiterate, your heart appears to be ruling your head here....and if you really believe in the "glamour of aviation" then, possibly it's best if you stick to the sector as a hobby....it doesn't matter if it's maintenance or manufacturing, the work is always intense.
You have asked for advice and you have had a variety of responses, all of which have offered you an insight as to what, realistically, you could hope to achieve.
Do, please, read what people have been saying....