I just completed my first year of high school, with a 5:30 mile (I ran this back in March, so I suspect I'm around 5:20-15 shape.) I also like to do the 800m, with a time of 2:19, and a 400m pr of 60.019. My goal for the 800m is to hit a sub 2:00 as well. How achievable is this goal? I'm in the middle of summer cross-country, and I try for 4 mile+ runs everyday, with my Saturday being a long run of 8 miles +. I take my Sundays off. I don't know if it is important to mention, but I'm a relatively short male, around 5'4. I know that consistency is key for improvement, but is it possible to pull this off?