Silence the voices.

"If you hear a voice within you say 'you cannot paint', then by all means paint, and that voice will be silenced."  

-Vincent Van Gogh

I will paint.  Even if my work schedule only allows me to paint on the weekends, I will paint.  Even though I may get frustrated that I "can't" paint what I see in my head, still I will paint.  If only to silence the voices.