“I am not a guru, that means also that I’m not trying to help you or improve you. I accept you as you are. I am not out there to save the world.
[…]
And so I’m often asked the question, is it really necessary to have a guru? I can answer that only by saying, yes, it is necessary if you think so.”
https://alanwatts.org/searchable/1-3-4-spiritual-authority-p...
If you need to some authority with a how to book and various rules to force you to maintain some esoteric rules, go ahead. But it’s not necessary.