I just reached level 40 with my first character and it says I need Journeyman Riding to get my next mount and I've been reading that you need to do a quest for it, but i cant find that anywhere. Any advice on how to get my level 40 mount would be greatly appreciated.

go to the warlock trainer in your races capital city or go to the mount trainer in your capital city and there wont be a quest, because you buy the mount as a spell from the trainer now