>I'm hoping that, one day, we get a tutorial for VoiceOver
Maybe it's not feasible for you but if you're ever near an Apple Store, you could definitely call them and ask whether they have an accessibility expert you could talk to. In the Barcelona Apple Store for example, there is a blind employee who is an expert at using Apple's accessibility features on all their devices. He loves explaining his tips and tricks to anyone who needs to.
Maybe it's not feasible for you but if you're ever near an Apple Store, you could definitely call them and ask whether they have an accessibility expert you could talk to. In the Barcelona Apple Store for example, there is a blind employee who is an expert at using Apple's accessibility features on all their devices. He loves explaining his tips and tricks to anyone who needs to.