How many kms should a 14 year old female run, and how many times a week?

I'm a 14 year old female, and i run about 5kms 3 days a week. How can i make myself fitter as i find that although i do this i need to work on my stamina to improve my fitness in other sports. Please give me some advice!!

How many kms should a 14 year old female run, and how many times a week?
Perhaps you could try running 6 or 7k one of your days and then keeping 5k on the other 2 days and then when you increase your longer day, to 7 or 8k, you can increase your 5k day to 6k. Try running 4 days a week too and then just gradually increase from there and listen to your body.

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