After more thought, I'd like to add....
When I first used a camera, I knew very little about exposure and just shot what I found interesting. Most of the shots from back then are questionable as to technique (if there's even an image), but the compositions were fairly good. Then I realized how bad the exposures were and started concentrating on that; the composition got left behind. Now, I have (usually) enough of a handle on exposure that I'm trying to get back to how I composed back when I started. It's easier to learn exposure than to relearn composition, imo. There were breaks of several years within all of this process, too, but the last 10 years or so have mostly been spent relearning exposure and relearning composition (I had my first camera at age 5, went to 35mm at 12).