Ha, ha.:-) A lot of us are in the same boat except that few are willing to acknowledge it openly. That said; i can suggest the following for further reading (from simple to advanced);

a) Eben Upton's write-up on "Raspberry Pi and Spectre/Meltdown" gives a very nice overview of the main features of modern processors - https://www.raspberrypi.org/blog/why-raspberry-pi-isnt-vulne...

b) Inside the Machine: An Illustrated Introduction to Microprocessors and Computer Architecture by Jon Stokes.

c) Computer Systems: A Programmer's Perspective by Bryant and O'Hallaron.

d) Modern Processor Design: Fundamentals of Superscalar Processors by Shen and Lipasti