Just practice proper posture and finger placement when playing DF, and also when messageboard posting, and IMing people.
That's how I got proficient with using a keyboard. Really though, I have *NEVER* seen a tech related job *EVER* have a keyboard speed requirement. That is really an ancient requirement from the PRE-COMPUTER generation, where the use of a manual typewriter without a means of correction required both speed and accuracy in order to get anything done, and still look professional in official correspondence.
Considering that the word processor is most definitely "here to stay", and that correcting and reprinting documents is a trivial matter that does not involve completely retyping whole documents, the keyboard speed requirement is only for people taking dictation, which usually take a special class for a shorthand anyway to get said job, or for people wanting a job working for the US postal service, who have to process absurd numbers of mail address corrections in a very timely manner to get mail delivered properly.
Those are pretty niche environments to have a mandated typing speed/accuracy quota, and the more likely reason is that you have an antique teacher in your learning institution that is still beholden to their glory days as a professional typist being protected by a teacher's union, or because the school's administration likes living in a timewarp, because it is easier than actually updating their curriculum to suit the modern world.
Seriously. I am 32. Typewriters were OUT when I was 12. They have been OUT for over 20 years. They are NOT going to make a resurgence any time soon, barring a nuclear holocaust, or other similar global catastrophe. The computer has them outmatched and outgunned on every front, and retaining legacy requirements is bullshit, and they know it.
That said, being able to type does have advantages in the modern world, especially if you intend to get a job doing database programming, programming in general, and linux/unix system administration. However, the technique used is NOT monitored, and most employers are only concerned with your getting your work done in a timely and efficient fashion. Not some pedantic futzing over protocol and methodology, over something as trivial as typing. (unless OSHA gets involved or something due to repetative motion injuries. (Then again, "proper" typing posture has been linked with those kinds of injuries as well, so that's a very grey area.)
If you want to practice proper finger placement and reaching, just get yourself something you enjoy reading (Seriously, those coursework exercises about "jac lad's lass" for homerow need to die, and die gristly horrible deaths, at the hands of a syndrome inducing giant sponge forgotten beast's vile secretions. Dont get me started about the top row + home row exercises involving the word "Leeks"...) and set it up beside your monitor, and just type it out without looking. Do something new and refreshing every day for an hour, and you will get proper finger placement and reaching down much quicker than you will trying to overcome the mental anguish of a typing class's "Subject matter".
Don't try to memorize then type; type as you read. Remember, that *IS* what this "Skill" was all about-- Manually retyping documents to make professional copies, from an age before the copy machine. Don't try to dress it up as anything else. It will be much easier to pick up if you actually ENJOY what you are reading while doing the copy.