Have enough sense to know ahead of time when your skills will not extend to wallpapering.
My attitude to writing is like when you do wallpapering you remember where all the little bits are that don't meet. And then your friends say: It's terrific!
Change does not roll in on the wheels of inevitability but comes through continuous struggle. And so we must straighten our backs and work for our freedom. A man can't ride you unless your back is bent.