I'm a senior who's been running since indoor my freshman year.
Last outdoor I was consistently around 5:25 in the 16, my 800 and 3200 PR's are 2:25 and 11:54. I ran 3:07 or 1k less than two weeks ago.
I consistently run 40 miles/week, plus or minus a couple miles. But I also supplement a lot by adding on longer warm-ups and cool-downs. Girls on my team are probably around 25-30ish miles/week just because they get less mileage during the week from slower distance paces and only running 5 days a week. I run long runs plus an easy 40 on the weekends (so 40 miles in 7 days most weeks).I'm the only girl under 5:40, the next closest girl is just under six (5:58) so I'm with the guys most of the time. My freshman year I probably was consistently around 30, sophomore year was probably consistently 35 miles/week, and last year was when I started consistently hitting around 37-40ish miles/week. I'm still improving at 40 miles/week and my coach does not want me to go any higher as he told me during cross country when I had hit a couple 42-45 mile weeks that I was getting "reckless." He wants to leave me some growth for college running especially if I can still improve without an increase in mileage right now.
Mileage is definitely an individual thing and some people thrive on more volume and others thrive more on less mileage, maybe a little more quality, depending on muscle fibers and other factors. It's all about figuring out what works for you so hearing one person runs x amount of miles may not work for another person. Typically if you err on the distance side (your 2 mile matches your mile ability more so than your 800), than running more volume will probably help you, or even supplementing some non-impact cardio like cycling can help (I was doing that my freshman year). Mid-distance people usually train a little differently, especially in high school, will typically thrive more on cruise intervals instead of a tempo run (4xmile with short rest a little faster than tempo instead of a straight out 4 mile tempo run) that a distance kid will thrive off of.
TLDR: You should really focus on running consistent mileage which you can stay healthy at. Personally, I consistently run 40 miles/week.