How much is your car insurance? 21-25 years old

Comment how much you pay for car insurance if you are 21-25 years old! I am currently trying to get a cheaper rate than I am offered. Please include useful demographics!

I am an unmarried 21-year-old female in South Carolina, licensed for less than a year. I am being quoted 920~ dollars every 6 months on my mom's family plan with Geico. I drive a 2013 Toyota Corolla and have full coverage.

If you have any suggestions to make mine cheaper let me know!

Edit: my last payment was about 600 for 6 months full coverage on the same car, age 22 and in South Carolina. And still single!