Hellloo! I am a 17 (18 in less than 2 weeks) year old girl and will be a senior in high school this fall. I have run cross country for 2 years- starting both seasons with no summer mileage. Because of starting both seasons after not running for ~3 months (I also run track), it normally takes me at least half the season to get back in shape, and the rest of the season is spent working on improving my time. I ran track in the spring, took it very seriously, and dropped my mile time from 6:58 to 6:10. I continued running after track and have been doing assigned summer mileage all summer. My current PR is 24:14 and I am hoping to drop that to the 20:30-21:10 range in the upcoming fall season. Does that sound achievable? What are the best ways to assure that I am able to drop time? Best workouts? Best diet? Any tips? Thank you so much!!