I love nearly all of this! I've got one question about the new version of Pushing Yourself, though - why is there no "spend some Stress for a bonus die" option? That classic 2 Stress for +1D push is where most of the Stress my players typically earn comes from, so I was surprised to see it gone.
Viewing post in Blades in the Dark: Deep Cuts comments
Now, to gain +1D, a player can introduce an additional threat. The push is after the first roll. In the book's notes, John explains the issue before: "You push, you roll three dice instead of 2, and if you obtain 6,6,6, you will be disappointed because the push was not necessary, so you wasted your stress."