Mastering typing skills takes training and practice. Practice on a regular schedule, 10 minutes to an hour per session, depending on your energy and focus level. As Vince Lombardi said, “Practice doesn’t make perfect, perfect practice makes perfect,” so it is important that you practice at a time and place where you can maintain focus and accuracy. Eliminate any potential distractions. If you find yourself making lots of errors, slow down and find a way to regain your focus or call it a day. The goal of practicing is to build muscle memory. You do not want to “learn” bad habits and mistakes.
EdX is another leading online-learning platform that is open source instead of for-profit. It was founded by Harvard University and MIT in 2012, so you know that you’ll learn about cutting-edge technologies and theories. Today, edX includes 53 schools. You probably can’t go wrong with the free Introduction to Computer Science from Harvard University.