Read this (easily applies to traders, too):
"I didn’t earn a single dollar in revenue in my first year as an entrepreneur. The lesson I learned was simple, but profound:
Being busy or working hard isn’t the same as making progress or being effective. You can be incredibly busy without being highly effective — and you can be highly effective even though you're not very busy. This lesson was a complete gamechanger."
From "Enter the Zone: Three Steps for Accessing Peak Performance" by Jari Roomer.