I've asked my readers if they have bought a book based on the cover alone and most said "yes," so I think a cover is of prime importance. My niece brought my vision for SWEET JANE to life. The title is crucial as well and should evoke emotion.
I'd tell myself not to let life derail my wriitng. I did put my work aside several times when I moved across the country. It's harder to restart than to keep going.