Not all heroes wear capes.
“I’m finally going to write! I have a great idea!”
OK but like… first sentences don’t have to be there forever. I cannot begin to count the number of times I’ve started a story like:
And just write the ideas down until the story starts to shape itself. Then when you’re ready, go back and delete everything before the point where the story actually starts.
Writing yourself into an idea is a time-honoured technique, and it works.