A lot of online typing tutors allow you to use custom text as practice. That would be one way. Another is just pushing yourself to program with the Model01. A third is to adjust the layout to match your muscle memory better (not necessarily completely, but perhaps better than the factory layout).
I went with a combination of #2 and #3: I forced myself to work with my Model01, and over the course of a few weeks, figured out where I want my brackets and the like. (Mind you, I started with a Dvorak layout, which has these symbols at better places to begin with, so I didn’t have to change much.)