I applaud this, and I'm a big advocate of every person finding out what's best for themselves.

I also admire the author because I derive a lot of joy from learning languages (should get back to it) but wouldn't ever undertake this.

The one comment I have here is that this feels a bit like trying to have a lot of control ("no client can cancel it") and what I've personally found for myself is that the answer to having been shattered by lack of control is learning to let go of control and flow rather than seeking more control.

But again, this is my own realization for my own mental health process! Irrespective of anything this is really cool and thanks for sharing.