Raising Blacksmith and Artisan is a hassle because there are so few things you can make that help you, but yes it does sound like you've had bad luck although making textiles wouldn't increase it, but the armor should have. Repairing your stuff you must take it to armor shop & spend money & time, or you must assign a Quartermistress with 50+ in science skill.
Artifacts are desireable to improve standing with some factions, in some cases, through the donation menu. They may have other uses but that one I'm sure exists.
Preachers Hall opens to more interaction during the end of the Michelle Wolfe "worth pursuing?" quest from asking about her background & hopes after she reaches high affection.
Aesir Tribe / Warrior's Hall is in fact a religious building, of the Aesir faith. It might be locked out if you've chosen a religious enemy to the Aesir, Catholic & maybe Muslim, are hostile although I'm playing Aesir faith & no problem supporting the Great Mosque
I see is this a really reply but I hope it helps you or someone.