Want to get better with computers? Play Myst.
Those who struggle with computers should play Myst. The unusual computer game, one of my favorites, is something of a boot camp in situational awareness. Don't know what you're doing? Great! You're on the right track.
The game drops the player onto an island with little explanation. No checklist is provided. No advice is broadcasted. Even the objective is unexplained. Only through exploration and experimentation do the story and plan begin to form. You're on your own, and yet, somehow, you figure it out.
Not sure how to print a document or sign up for a new service? Look for clues. Keep an eye out for anything that seems related. Press buttons and see what happens. Progress one step at a time, and don't be afraid to retreat from dead ends. Somehow, you'll get there, and you'll learn a great deal along the way. Made a mistake? Those can be undone. Rest assured, you won't be trapped in a book for all eternity.