Are you in the Army? That's what I figure since the Army loves 60/120s. I would say work up to running 25-30 minutes 3-4 days per week. Don't worry about the pace too much, just get out there and run. Then, progress one of these runs to 40-50 minutes. This is your long run of the week. Then, add another day, then another until you're at 6 days a week. Keep adding minutes until 40 minutes is your daily run and 60 is your long run. That should get you most of the way there. After that, test yourself with another 2 mile or maybe a road 5k and see where you're at. This should take about 2-3 months. Then I'd add in some track workouts. For the 2 mile, I'd do 6x800. Start with 4 then build up to 6. 90s-2 mins rest is good. 3x1 mile is good too.
Other thoughts:
Strides. Every day after an easy run, try and find a grass field (infield of a track, soccer pitch, etc) and run at a brisk pace from one end to the other barefoot. This improves your running form and helps make 2 mile pace feel easy.
Hills: Hills are speed work in disguise. Try to do your runs over hilly routes to build strength and proper form.
Trails: I personally find trail running far more enjoyable than road running, and it's usually better for your shins and knees (there's a lot of debate though).
Shoes: gotta find a good pair. I usually buy mine on eBay.
Good luck!