I am a quite happy user of Eclipse (I mostly develop in PHP and Python), however I found the answers to \"What specific productivity gains does Vim/Emacs provide over GUI text e
First of all, be humble.
As long as you remain aware that they are very powerful tools you'll be ok. If you are finding a task very difficult, and you are thinking 'it's just me that sucks not the editor', you're in the right mind to learn and improve.
Bram's 7 habits are a good tenets to go by http://www.moolenaar.net/habits.html
Also I highly recommend having a go at writing a plugin. It doesn't matter what it does. It gives you the impetus to dive deep into the manuals.