[epr]

The best answer to your question is some variant of "write more assembly".

When someone indicates to me they want to learn programming for example, I ask them how many programs they've written. The answer is usually zero, and in fact I've never even heard greater than 10. No one will answer a larger number because that selects out people who would even ask the question. If you write 1000 programs that solve real problems, you'll be at least okay. 10k and you'll be pretty damn good. 100k and you might be better than the guy who wrote the assembly manual.

For a fun answer, this is a $20 nand2tetris-esque game that holds your hand through creating multiple cpu architectures from scratch with verification (similarly to prolog/vhdl), plus your own assembly language. I admittedly always end up writing an assembler outside of the game that copies to my clipboard, but I'm pretty fussy about ux and prefer my normal tools.

https://store.steampowered.com/app/1444480/Turing_Complete/