Can I be competitive in a high school high jump event?

I'm a 15 year old girl 5'3" and I weigh 108 pounds. I've done the high jump event in the past and I won the event 5 times. However, the highest my jump has reached was 4'2". I was wondering if this would be competitive height in a high school high jump event. Also, are there any exercises to help me jump higher?





Thank you!|||You can join the team and If you work on it, your jump could improve before and during the season.