I recommend getting many different teachers and taking the best from each one
I suggest learning only from people who are performing that also know how to teach, because that is a different thing from playing, and only ones that have recommendations from other people.
Just one secret I will already tell you now: if you practice, and practice smart, you can do anything, not just didgeridoo.
Oh and If you don’t have a Didgeridoo, I could send you one