we use belts and blocks and bolsters
....or could it have been iyengar- which uses lots of yoga props?
My nirvana is Crow. I've been doing daily practice (around 1 hr) since 2020 and before that many years of twice weekly classes, and despite doing a reasonable downdog, and core strength, Crow is on a different level in terms of arm strength, balance and stability. My arms and wrists probsbly just aren't strong enough, maybe I should get into the gym and do specific arm exercises, but I don't want to get muscly arms! I think it may be one pose that will always elude me, but I keep trying -and wobbling--
The great thing about yoga is that you're never done, there's always something new to experience and learn.
My top tip is not to stick with the same teacher, whether 'in the room' or online, although that may be difficult depending on where you live, as good yoga teachers aren't plentiful. I've had some great teachers, but equally I've had some appalling ones that don't have a clue (sorry that isn't very yogic is it 
)
Online I have 4 fab fave teachers:
Kassandra
Adriene
Travis Elliott
Lesley Fightmaster (very sadly no longer with us, but she has left a legacy of wonderful Hatha Yoga sessions
There are a couple of other who are also lovely that I dip in and out of sometimes
Aprill Walker The Yoga Ranger Studio
Sarah Collins - nice for Yin stretches