We are going to write a story. Rewrite and expand every phrase in quotes to continue the story. This is the first paragraph: Laura has an accident at work and discovers she now has superpowers
Sure, here's the story expanding your phrase in quotes:

Laura tried to carry too many things downstairs, but fell down. She was about to hit the floor, but suddenly, she started floating. I can float!, she exclaimed. She was smiling and her surprise was exciting every inch of her tiny body. However, she hadn't consider how she would come back to the floor. She didn't know how to stop floating. She was a woman with superpowers, but she didn't know how to control them. Laura was about to have another accident.
Good, however you have a tense problem with one of your words.
You wrote However, she hadn't consider when you should have used considered, past tense.
You should not mix past and present tenses.
Ah, seems I made a mistake! Here is the tense corrected version of Laura's story:

Laura tried to carry too many things downstairs, but fell down. She was about to hit the floor, but suddenly, she started floating. I can float!, she exclaimed. She was smiling and her surprise was exciting every inch of her tiny body. However, she hadn't considered how she would come back to the floor. She didn't know how to stop floating. She was a woman with superpowers, but she didn't know how to control them. Laura was about to have another accident.