How do I fix bad typing habits?

First, identify the habit (e.g., using left index for 'y', not using right pinky for 'p', looking at keys). Then: 1) Slow down to half speed and consciously use the correct finger for every key. 2) Use typing software that forces correct technique (TypingClub highlights the finger to use). 3) Cover your keyboard and take a 10-minute 'pure form' session daily. 4) Tape a note to your monitor: 'Home row! Pinky on P!'. 5) Practice specific drills targeting the wrong habit (e.g., for 'y' – type 'yjy yjy' repeatedly). 6) Unlearn by deliberate repetition; it takes about 3 weeks of consistent correction to replace a bad habit.