While i personally do not wish to have everything documented, i can sympathise with you
You said "introduced", so that pretty much explains it. So welcome aboard for starters, and if your newfound joy makes you look into (the much) older titles, a bit of an advice:
The more proper and older an RPG, the more real pen and paper sitting right next to you is recommended. Was (is still for me) part of the joy!
If you want to get started, i could happily name some titles (from each category within the genre) that you could have a go at
