Your progression system is a notebook
The game tracks none of this, so the notebook is the system. Three fields, thirty seconds a day.
Date + rung. Where you believe you are today. Reading old entries is the only replay system BetterEH players get, and it is a good one: plateaus look obvious two weeks later.
Skill worked. Which of the four fundamentals tonight’s session trained. If the same skill repeats for two weeks without the checkpoint moving, change the drill, not the skill.
One observation. The death or the round that taught you something, in one sentence. This field feeds the next session’s goal — the whole loop closes through it.