Had to throw one away!

This is the newest. I spent about a week on a collage that turned out to be irretrievable. I made a deal with myself that if that happens I throw it away. I wrestle a little, but I can also cry "uncle". Its not unusual for me to begin a collage totally believing that I can never really make another collage. 

I keep being dee-lighted by the idea that these are sketches for paintings. When will my courage appear? I imagine these to be LARGE paintings. At least 1/3 sheet luan, 31" X 4' or BIGGER. But then what?