Honestly, you have an idea (person with a superpower). That's not a story just yet. I'd put the idea of super abilities aside first. Focus on the story you want to tell, if you haven't done so already. What obstacles is your MC going to face in order to achieve their goals? And how will they respond to those obstacles? From there, you can find super abilities that are relevant and work well with the core of your story.
Example:
Shy guy Darryl is bullied on a regular basis. He can't go back to work to face his rivals, but with the help of her grandmother he finds the strength to fight back.
Now you have the premise of your story, you can begin to think about what makes sense
When it comes writing superpowers, I typically think about themes and elements of the story that I want to explore. In a current book, I wanted to explore super abilities that were not obviously. That led to mind control and hypnosis. I researched meditation and trance to the MK Ultra experiments to court cases where people have wrongly confessed to atrocious acts because of the type of questions they were asked and how these questions were asked. From doing this research, I began to paint a picture of the power to control one's mind, and how those with the natural ability are often the victim to those who have learned to special effects to hypnotize them. Now, I've always been interested in these subjects so over time that knowledge has accumulated. But if you haven't thought of it already, then look to your own interests about philosophy, science, history, etc and see if therein lies stories exceptional humans. Then starting asking the what-ifs.
But don't do that yet until you have the story solidified.