so i am a community college 20 year old going to run at a good 4 year old for indoor track season just not sure but all 3 options are at altitude but coming from 60 miles a week a 4:13 mile with 3 years of track eligibilty left is it even possible to break 4 its everyones cliche goal but by age 23-24 do i have a shot granted healthiness and increase of mileage to ...?