When you delete the entire word, rather than just until the spot where the mistake was, you are creating a much more forceful signal to the brain that you made an error. The time you put into this exercise at the beginning will help in the long run as you slowly get used to writing the correct version of the word. In order to prevent losing too much time, simply delete the whole word with keys like “control (CTRL) + backspace”. This will save you some time without detracting from your learning process. You can delete the previous word with the following shortcuts:

  1. Word processors – “CTRL + backspace ” 2. Vim (text editor) – “CTRL + w ” 3. Vi (text editor) – “dw” Original Source – Reddit