Much respect for you to do this.
Take a real class, with a real teacher, with real lessons, with proven techniques...much quicker learning.
In a few weeks you'll be so glad you did - instead of any other method of learning.
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I took typing as a hi-school senior in order to lighten my load. Fun class/cute babes.
In the early days of my business, I typed my own invoices. Then I got a computer...blah, blah, blah.
I never realized how knowing how to type well would accent my life.
Good luck.