Mozegler, there are bad apples everywhere and unfortunately it is human nature to be more impacted by the bad than the good. It is unfortunate that you’re experience has been less than desirable but it isn’t a reflection of the community as a whole.
By the way, it can help if you ask questions in your new player chat which you should have since you are newer to WoW. And when making posts, try to put them in their appropriate channel to get more serious answers (I of course am guilty of this same misstep as well) but general is where you will get the well, general populace and if you have a specific question it wouldn’t be the best place to look.
In my own personal anecdotal experience, Area 52 is just a bad realm, all games have those. Your character is only level 18 so rerolling on a new realm wouldn’t be a bad idea or a large investment.
On that note, selling runs has been very largely prohibited by Blizzard and you shouldn’t be seeing those anymore except from the people on your own realm. It isn’t what the game is, though the WoW game token has certainly hurt the game economy and made that a staple niche no matter what Blizzard does.
I would suggest taking something like this to the realm forums to both see what might be a good fit to you, and that is also a good place to look for advertising guilds, thus finding one you may want to join.
This would fit better in either the Story forum or the Mage Class forum. There are plenty of WoW creators that go into the stories of the Order Halls, you could find those on youtube if you were confused after playing through it.
Though, I will admit a very bad habit that WoW has is relying on outside sources of information to tell its stories. Many characters that play crucial roles in Azeroth get their stories told in short stories, novels, comics, or previous games such as Warcrafts I-III that if you were entirely new it could be confusing.
It would take a forum post even longer than this current response to give you ALL the details, so I would suggest looking in places such as the WoW wikipedia or watching videos from content creators on youtube.
Good Luck 