I think you are definitely relating to many artists. I am primarily a landscape and still life painter. In my past I worked also as a silversmith and a sculptor as well as painting. Whoever said "focus" may not have had the correct answer for every artist. We are many-faceted beings but it takes courage to step out of one's 'norm' which may have become a 'rut'. I heard God impress in my heart many years ago, "kick the ends out of your rut before it becomes a coffin". I am on the precipice of doing just that again!