I am not sure how should I reply here ... I mean my first post in about 2005 in (now non-existing)
BSDForums.org was how to scroll thru the FreeBSD terminal ... and when
BSDForums.org was killed I had more then 7000 posts there.
What I mean to say here that there is no fast track to knowledge. There is not fast lane to understanding things. Getting to know how things work. You just find and 'thing' that You want do do - let it be FreeBSD installation or email server - or backup server - or proxy server - you start with search engines and AI prompts to give You all possible input you seek - you read all of these - You try to configure it by your own - you face first problems - you debug them - you check log files - you try again - ask more - reach forums/reddits/social media for help - try again ... its more like that ... over and over again.
I have done it this way for more then 20 years now - two decades - and I plan to do so next two decades ... or maybe even till I am dead - because that is how it works.
Its like recurrence - in order to understand and implement things you first need to understand and implement things ... there is no shortcut here.
... and I do not have anything against AI here - ask all of them for assistance or explanations how things work - they really help - so are humans - it just takes time to get all that knowledge you are seeking for