Targeted drilling on intervals, chords, rhythm, and dictation, overlaid onto the Campaign map. This is where the repetitions happen, aimed at exactly the thing you are weakest at.
A particular interval, a chord quality, a rhythmic subdivision, a dictation pattern: descending minor sixths, syncopated sixteenth-note figures. Narrow focus, on purpose.
Drills sit on top of the Campaign map, so the repetitions always serve the path you are already on rather than living in a separate exercise pile.
High repetition with adaptive difficulty, so the drill stays hard enough to matter and easy enough to finish. Rest is part of learning.
Go deeper: the platform, in order