The Adventures of Red Electron by LanaJoKing 

Arin Adams doesn't exactly have the greatest superpower ever, but a series of accidental victories gets her thrown into a world of professional superheroes- and supervillains.

Before she can even learn how to control her powers, she finds herself in the spotlight of the universe's top superhero team: The Ultimatum, obtains a superhero-hating girlfriend who is definitely going to learn her secret soon, and a crazy-rich arch nemesis who is out for her head.

Superheroeing might not be all it's cracked up to be.