What is a good time to run the 300m hurdles in?

I'm an 8th grade girl and I run the 300 hurdles in 52 sec. Is this a good time? What is a good time for high school girls to run them in?|||thats good for high school. you should try and get it down to at least a 42 or somewhere close to it...i ran a 44 in 300m hurdles in high school. its all about form and stamina