It takes a year because you learn it over time. Learning a tool progressively is the best way to go.
There is a wonderful presentation called '7 Habits For Effective Text Editing 2.0' [1] explaining this philosophy. The idea is to get the basics down upfront and then get more proficient gradually over time.
When you use the tool you stay aware of what you are doing. When you find an inefficiency in the way you use the tool, find a quicker way and make it an habit. This is the most efficient.
If you only care about the code you have to type right now and never read the editor's documentation nor learn new commands you'll keep using only basics commands and never will gain proficiency. Not efficient.
If on the other hand you try to learn every feature immediately you'll waste time learning things you won't use and forget most of them anyway. Not efficient.
There is a wonderful presentation called '7 Habits For Effective Text Editing 2.0' [1] explaining this philosophy. The idea is to get the basics down upfront and then get more proficient gradually over time. When you use the tool you stay aware of what you are doing. When you find an inefficiency in the way you use the tool, find a quicker way and make it an habit. This is the most efficient.
If you only care about the code you have to type right now and never read the editor's documentation nor learn new commands you'll keep using only basics commands and never will gain proficiency. Not efficient.
If on the other hand you try to learn every feature immediately you'll waste time learning things you won't use and forget most of them anyway. Not efficient.
[1] https://www.youtube.com/watch?v=p6K4iIMlouI#t=2085