I do not have to think about what I'm doing in vim, when it comes to normal text editing.
To be quite honest, getting up to normal-editor level with vim shouldn't take more than a month to become comfortable. Learning to move, yank, paste, and navigate windows is not hard and you really don't have to think about it.
More advanced usage I have to think about, but that's no different than if you had to think about what you were doing in sublime when you clicked search and replace and started typing in a regular expression.
My keyboard mapping of choice is Brief and the way this works for me is I think of a task and my fingers figure out what keys are needed.
On occasion I need do the reverse action, figure out what keys are required for a task and that requires a fair amount of thought.
What I do is think of the task and then as my hands are working I watch them to figure out which keys where used. It’s quite a strange feeling.