When you are stuck, explain your problem to others. Often simply laying out a problem will present a solution. Make “explaining the problem” part of your troubleshooting process.
To me, fearless is not the absence of fear. It's not being completely unafraid. To me, fearless is having fears. Fearless is having doubts. Lots of them. To me, fearless is living in spite of those things that scare you to death.