UC Personal Insight Questions are not essays?

I am not in admissions so take my opinion with a grain of salt.

I would not rewrite all of your answers. Instead I would read through your answers and see if you answered the prompt as thoroughly and complete as you could? Did you use up your word count on things that weren’t necessary? Could you better use those words to tell more about yourself, your interests and motivations?

Have you looked a the activity section of the application? There is a lot of room to go into more detail there. Don’t leave that section for the last minute.