Some people are able to balance a tremendous amount of activities in their lives, simultaneously, while most cannot.
Supposedly, Ben Franklin (one of America´s founders, an inventor, politician and entrepreneur) was once asked, how he did so much. His response was something along the lines of “When you do a lot of things, you get a lot of things done”.
However, for most people, when they put their focus in too many directions (on too many artistic projects, let’s say), quality can suffer and the many projects they are balancing can result in mediocrity, rather than one or two focuses being of high quality.
I am a firm believer that it is better to do fewer things with great focus, time, and attention to detail and quality, than it is to just do a bunch of stuff for the sake of quantity.
I like this quote by Edward Hyde, “It is not the quantity of the meat, but the cheerfulness of the guests, which makes the feast”.