You were going over your head what superheroine you wanted to dress as, while the robot arms that were helping your body change remained frozen for a minute. You then had a thought about who you wanted to become, while also picturing her in your mind, while seeing her fly in your mind.
That superheroine was known as Josie Lane-Kent, AKA Justice-Girl, who is the sidekick/daughter of Clarence Kent (Justice-Man), and her mother (Lori Lane) was a reporter for the town news. Justice-Girl was a teen superheroine with freckles, short bobbed orange hair, blue eyes, C-Cup breasts, and wore a red & white no-leg leotard that had sleeves along with gloves, boots, and a cape. She also had the same powers as her father which were super strength, flying, fire from hands, lightning vision, and ice breath.