Metronome pacing
Set a metronome (or metronome app) to a beat you can type ONE correct character per tick, then raise the tempo 2 bpm per session. The method forces even rhythm — the thing that separates 60 WPM typists from 80 WPM ones is not peak speed but uninterrupted cadence. Uneven bursts with hesitations cost more than slow-and-smooth ever will.
Error-type analysis
Run five tests here and note WHICH characters you miss: most typists have a signature set (p–q, b–d, the left-ring finger's keys). Drill those specific bigrams deliberately — typing "pq pq bq db" patterns for two minutes daily fixes in a week what generic practice rounds to slowly. Your errors are not random; they are a fingerprint, and fingerprints respond to targeted work.
Burst consistency and variety
Practice typing 5-word bursts at 110% of your comfortable speed — training the ceiling raises the floor. And vary the text: common words build rhythm, technical passages build letter-pair coverage, punctuation-heavy text builds the shift-key reflexes that real work demands. One test type builds one skill; the rotation builds the typist.