Interresting topic. I thought I had it all figured out when I was playing on much smaller and less complicated keyboards. My left hand knew all the chords (with a little help from my good friend the Transpose Button) and I didn't have to think about what I was supposed to be doing. But then I got into more complicated keyboards. And all of a sudden my left hand wasn't only for playing chords anymore but had to do things like trigger fills and multi pads and all the other things Yamaha places on the left side of the keyboard. But after much practice I mastered that too.

In a way it's like learning a new language, at first you have to translate every word in your mind, but later when it 'clicks', you stop thinking about it and just speak naturally.

So ... just like anyone else here said... don't give up and practice practice practice (and have FUN doing so!)

Don