This sounds more so like a concept rather than a premise for a film.
What is this character’s desire, goal, or want?
What is his call to action/inciting incident?

Also, when you say “things will change”, what are those things?
I want to know because it sounds like those things in turn are the reason why he becomes a superhero.
If they were specific, that would make the story more rich and have a more focused direction for the story.
For instance, Batman’s “things” that changed him and caused his vigilante side was the murder of his parents.
Also, his fear of bats influenced the reason to face his fear and embrace it by becoming who the superhero version of him would be.
Hopefully this makes sense!
Good luck!