Ideas & Thoughts.
Idea is new, fresh, creative and innovative.
Thoughts are old, repetitive, follows the same pattern, boring and then depressing.
When people say, I am thinking - that means, just going over the old stuff; nothing new about thoughts.
You don't say, I am thinking about new ideas. I am working on new ideas.
Thinking is not good. Those story writers do not say, I am thinking about new story. They do say, I am working on new story.
So, stop thinking; start working on new ideas.