A record, not a coach
Log the injection as it happens — a dose entry, date-stamped, with a note if anything showed up afterwards. Tag a side effect, a food, a weight, whenever there is one worth keeping. That is the whole practice, and it takes two taps and a number.
The web notebook carries no encouragement, no streak, and no cheerful line telling you it is going great. A notebook that flatters you is a notebook you cannot trust in the fortnight it goes badly.
The record