Eight honest questions, one 30-second physiology check. At the end you'll see your bottleneck, the single factor capping your performance, and what moves when it moves.
Self-report lies. Physiology doesn't. This is a BOLT test. The urge to breathe isn't a lack of oxygen, it's rising CO2, a stress signal your body can't ignore. How quickly you react to it mirrors how quickly you react to pressure everywhere else. Two easy breaths, a normal exhale, then hold. Tap at the first clear urge to breathe. Not a max hold, not a competition.
I'll send you the specific protocol for this exact bottleneck. One short email a day for seven days. Each one is something to do, not something to read.