Yep,
I started with two walking sticks.
I’d say a corridor was a mistake, It sounds like it worked for TJ, but for me a big open piece of concrete was required. You need to be able to pedal the direction you fall. If there is a wall in the way, it might screw up the process (just my opinion TJ). Don’t try to learn on grass either, there is too much resistance.
So two walking sticks, then one, then none. In fact before you get to none, holding the two walking sticks straight out improves your upper body moment of inertia, and gives you more control of the all-important hip twist, even when the sticks are not on the ground.
It’s all in the hips and thighs. Learning to unicycle is an incredibly good work out, and you only learn to relax and take it easy when you get good enough that the corrections needed are small. The better you get, the less energy you ned to put into corrections and staying up.
When I learnt (about 20 years ago!) I likened it to learning to walk again. Once you get it, it’s almost impossible to understand how you couldn’t once do it. The order of learning was first get to go forwards, then backwards, then hovering. For me, about 20-30 hours effort over two weeks to go perhaps the first ten metres forwards in some sort of control, then learn to go backwards. Put them together, and learn to “hover” – Then you’ve pretty much got it!