It is more important to have a low error percentage than a higher speed. The low error percentage will be your best guarantee for success in the following lessons. You can follow your progress at the statistics page (just press the button 'Statistics' at the upper right corner) You should strive to do all lessons flawless (or at least with max two percent error) before you go on to the next lesson. If you learn to type flawless a high typing speed will automatically ensue. By the way, the error statistics will only save your best results.
A lot of people type with two fingers, and thus type around 10 - 15 words per minute. After completion of this course you should be able to type at least 45 words per minute, and even faster if you type often. If you at your job type nine hours a week you will be able to save the six out of these nine hours provided you triple your typing speed. That will be nearly 300 hours saved a year or seven weeks extra holy days a year. If you have 30 years left before you go on pension the course will save you about 230 weeks work. Are you self employed you will be able to stop working four years early. Or, if you could convert your increased typing speed into a pay raise, you could get four years extra payment before retirement. Learning how to touch type is probably one of the best educations you could invest in. And it won't cost you any money. You can here: calculate your own personal benefit from improving your typing speed. How ever it works out for you, you have probably never met a person who regretted spending some time improving his or her typing speed.
If you want to learn how to code, taking your first steps into this huge universe might seem like a daunting, if not intimidating task. Here’s the big secret: There are plenty of free (and inexpensive) resources you can use to give yourself all the help you need, teach yourself new techniques, and make this learning process fun and exciting—as exciting as coding can get, at least.
Take a few minutes (or a day) to think about the reasons—the real reasons—why you want to learn a programming language. Be honest with yourself. Are you trying to learn the barest minimum to score a promotion? Are you looking to make a big career change? Do you want to create the next greatest app? Thrill your roommates by programming your various smart devices to do something awesome?