Welcome to the forum.
Here's some reading that will inform and amaze.
Sheldon Brown-Bicycle Technical Information
Being an old fart , I like to read stuff by older (wiser) riders who have done it all and settled on what works in the real world.
Touring sites have good comfort info and GCN on youtube have some funny and informative videos to peruse.
Here's a pretty funny one from GCN.
Don't take yourself too seriously and have fun and ride safe.
Mick