Agreed, but there is slow and then there is ridiculously stupid crazy slow. I’ve done discord and chivalry all to 120, and mysticism is far worse than both those combined!!!
Yes, good thing having more than one account, allows us to do other things instead of watching paint dry.
Then would try the Eodon tactic, where just after you pass the ?Urali village, go through the bridge, and immediately on the right side as soon as you are off the bridge there is an island you can teleport on riding you dog, that hopefully is not 5 slots but maybe 4 slots. So then park the dog there, then get on your Ethy horse, and attack several beasts from the valley there, including some poisoners so your dog learns healing also, lure them close across from the island with your dog, then teleport on the island and have the dog attack them from across with the dog. The dog will cast spells on the mob, and also get poisoned and gain both healing and also Mys. When you disco the pet there, you must watch its health also depending on the pet. If you see it use a lot of mana healing etc, you can tell it "all stop" to gain mana. Trying different tactics never hurts, see what works. Slow process either way. Watch a movie while skilling. Don't skill afk, they may be looking for it and so I would not recommend it.