Had a 2nd hand Commodore 64 as a kid and copied small BASIC programs from a worn copy of the Programmer's Reference Guide, filling in pieces from a few partiall

Had a 2nd hand Commodore 64 as a kid and copied small BASIC programs from a worn copy of the Programmer's Reference Guide, filling in pieces from a few partially torn pages. But I wouldn't say that taught me programming. Didn't have a PC until I was 16. No internet until 17. Last couple years of highschool, I made a few trivial web pages with PHP, and I wouldn't say I knew anything about coding then either. Nor would I say I really learned programming while completing my CS degree. I felt like I had learned to program while being unemployed for a few years after graduating, and I didn't feel like I was any good I until after my first few jobs. Now, having held a senior engineer title for some time, looking to move on to a principal role, I realize I never really knew anything.