It's quite hard to imagine this is done within 10 days, awesome work here!
Well done on the gameplay, feel, and sound. I enjoyed this game a lot.
I have to admit that I do have some analysis paralysis during the "planning" phase, and integrating the 'breathing' context into the "skills/techniques" are a bit far-fetched for me. The breathing technique mini-game has nothing to do with the main gameplay loop as well.