It's only impossible until it's done.
People thought running a mile in under 4 minutes was impossible until Roger Bannister did it.
The late Billionaire investor Sam Zell said, "Conventional wisdom leads to mediocrity."
If you're stuck, get curious. Question your assumptions. Question everything.
Is there a better way to apply technology or new knowledge to your current challenge?
Who is one step ahead of you? What can you learn from them?