I recommend people making it their desktop background. Being "in your face" helps you remember to learn and explore things like 'ca)' rather than just hitting delete and arrow keys a bunch.
>"Can you tell me a way to switch that will not significantly reduce my productivity for the first few weeks."
Two obvious answers that came to me while reading that sentence: 1) Use it at home/off hours/for side projects/etc until you are proficient enough to do work with it. 2) Use it for 1 task a day, then 2 tasks, etc.
The "Turn everything off" is stupid way to start. [Altough it's one way to reach next level after you are basically proficient] Clue to OA, find better people to get advice from.
> I was able to get here because I used my [blah, blah, blah]
No, because you stuck it out. Like most worthwhile things Vim is not instant gratification.