[infinity.]

i started running after my junior year in high school to condition for sports, ran a really slow mile, couldn't really run for more than a mile. been running about 5-6 times a week ever since and now am a 2:40 marathoner and have a 16:30 5k.

you don't really need to be too scientific about it, just make sure you're getting out there and stretching afterwards. find ways to get excited about your runs and worry about building up endurance before looking to catalog your progress. i would stress that early stages you shouldn't be looking at your splits or trying to hit certain times.

try to mix it up and run outside on new paths or find new places to go, it'll likely be difficult to stay motivated staring at the wall of a gym or a tv screen while running all the time