Ritalin. Does the trick for me. I started taking it at about 40 yo and it made a world of difference in my ability to pay attention to things; and therefore, to hold jobs much much better.
It's the result of fury.
In about 1985, at TI somebody brought in one of the first Macs and we got to play with it. It was different from everything on the market, not counting the old Xerox Star which was probably not still around at that point. The Mac was the first computer that was actually a personal computer and not a minimalist mainframe. Circumstances left me on the PC side of things, but it was clear they were following what was going on over there. There was more to it than that, but - good job, Steve. I wish you'd had 30 more years.
You're not Dave. Who are you?