Are you sure about that? How long have you been doing this?
During my journey to catalogue my collection so i can better manage it and make it seem lest daunting, i asked my self these questions.
I've been scanning with a cheap barcode scanner all week on the dvd, cd, etc cased games that have bar codes...
I thought i had maybe 500 games in total... i was wrong:
https://cloud.collectorz.com/nikusama/games
809 at time of posting, some of that is hardware but not much, less than 50.
i also haven't really scanned in NES, SNES Atari anything, most of the cartridge systems games.
It might be a good idea to keep track to put things into perspective.
oh that answer to the 2nd question is 30 years... ...30 years of unorganized chaos