Should I Worry?

Should I worry?     I am hooked on pen and ink drawing - the free motion, spontaneous - straight from the imagination.    I spy the new pen, the pad of paper on my desk and forget about the house duties, the bills stacked neatly nearby..   I yearn to draw but know if I pick up my pen, I will work into the night.     "I will stop by midnight," I tell myself.   Is there an addiction treatment center for compulsive artists types?    Should I  work in secret?    No.    I shall work with abandonment up front and in full view of God and all those who understand the lure of the night muse.  
Does a grandmother of eight need permission to create at midnight?     Do I need to adhere to some self-imposed bedtime?   I don't think so.