Yes, do it this way. When I learned vim, I just went to work and decided to use it one day. The only thing I did was get on Stack Overflow and look up how to turn off the arrow keys, so I would have to use hjkl.
As you said, by the end of the workday I was very comfortable with basic vim use.
As you said, by the end of the workday I was very comfortable with basic vim use.