ok a couple tips
I used to be a big track and cross country guy in highschool and college. one of the tricks to a distance event like the two mile is setting your pace. If you just go out there and run it you are either going to hit it to hard at the start and run out of gas or you are going to be afraid to run out of gas and hold yourself back too much.
so your time required time is 13:00 for a mile
so 13 x 60 = 780 (converting minutes into seconds)
780 divided by the number of laps or 8 = 97.5
lets round down to make sure you are under your 13min goal
you should be running 97 seconds or 1:37 per lap
do repeats at 1:37 per lap and give yourself full recovery between
as you progress begin to cut down your recovery time
week one: full rest, week two: one minute rest, week three: 30 seconds rest, week four 15 seconds rest.
then maybe switch to two laps in a row at pace, two laps at 3:14 then rest
after awhile you will be able to estimate the time you ran pretty accurately just by feel