Third, Keybr.com lets you introduce as few keys as possible to the lesson, adding more keys automatically when it decides that you are proficient at the current level. When you only start learning it generates lessons with words from a very small alphabet of the most frequent letters. When your typing speed for every key in that alphabet reaches certain threshold, the algorithm adds the next most frequent letter to the alphabet. And so on, until the next letter. This way you will learn the most frequent letters first, and the least frequent ones later.
Want more one-on-one coaching and career prep without doing a full-time bootcamp? Try signing up for the subscription-model certification courses from Udacity or Treehouse, where you have the opportunity to ask a tutor for help instead of suffering your coding mistakes or questions alone. You can’t do much better than the $19 coding classes from Udemy (even less, when there’s a sale)—even full-time bootcamp and computer science students sign up for these classes to supplement their learning.