Hi there Aladdin,
Similar circumstances to you- I live in UK, born in 1978, diagnosed with Aspergers at 32 highly suspect ADHD too and am currently looking at getting assessed. I also have a degree and am underemployed, with a desire to write and am currently working on Star Trek Cluedo! Small world.
You should look into Data Analysis right now as I suspect it’s very much needed!
With regard to writing, what kind of books do you want to write?