why won't my typing practice unlock new letters?
If your typing tutor has stopped unlocking new letters, you have most likely hit a known limit of confidence-based progression, not a limit of your own ability. Tools built this way — keybr is the best-known example — hold each letter behind an internal score and only unlock the next one when that score crosses a threshold. It works well early on, but rare letters appear so seldom in generated practice that their scores move very slowly, and some scores also decay between sessions. The result is a stall that feels personal but is really arithmetic.
why the letters stop coming
Confidence-gated tutors estimate how solid you are on each letter from your recent speed and accuracy on it, then generate practice from only the letters you have unlocked. The catch is circular: a letter you rarely see gives the algorithm little evidence, so its score climbs slowly, so it stays rare. Late-alphabet letters can sit just under the unlock threshold for a very long time while the practice text keeps feeding you the letters you already know.
why it is not you
A stall like this says nothing about your hands. You may be typing the gating letter perfectly nine times out of ten — but if it only appears a handful of times per session, a single hesitation drags the average back down, and scores that decay over a break can even move backwards between sessions. Learners routinely conclude they have plateaued when the real issue is that the algorithm is starved of evidence it refuses to go and collect.
what transparency changes
The alternative is to make the numbers visible and the progression fixed. When you can see your own per-key accuracy and speed, a slow letter is a fact you can act on rather than a hidden gate — you drill that key directly, on purpose, instead of waiting for it to come around. And a fixed curriculum that introduces every letter on a schedule guarantees full coverage: on this site, twenty lessons cover the whole keyboard — the number row and the punctuation included, the stats page shows every key's numbers plainly, and tapping any key starts a short drill on exactly that key.
if you are stalled right now
Two practical moves. First, drill the gating letter deliberately somewhere that lets you choose it — a few focused minutes gives any algorithm the evidence it was waiting for, and gives your hands the reps either way. Second, consider running a fixed-curriculum pass once: working through lessons that guarantee every letter removes the unlock mechanic from the picture entirely, and adaptive tools become more useful once nothing is being withheld.
questions
why has my typing tutor stopped unlocking new letters?
Most likely because it gates each letter behind an internal confidence score, and rare letters appear so seldom in generated practice that their scores climb very slowly. Some scores also decay between sessions, so a letter can sit just under the threshold for weeks while the practice keeps feeding you letters you already know.
does a stall mean i have plateaued?
Usually not. You may be typing the gating letter correctly nine times in ten, but if it only appears a handful of times per session then a single hesitation drags the average back down. The stall is arithmetic about evidence, not a verdict on your hands.
how do i get unstuck?
Drill the gating letter deliberately somewhere that lets you choose it. A few focused minutes gives the algorithm the evidence it was waiting for, and gives your hands the repetitions either way. Running one pass through a fixed curriculum removes the unlock mechanic from the picture entirely.
is a fixed curriculum better than an adaptive one?
They solve different problems. A fixed sequence guarantees coverage, because every letter arrives on a schedule whatever your scores say, while adaptive practice is good at spending your time where it is needed. The useful order is coverage first, then adaptation.