You are welcome. And what I meant about "You might be luckier than me, and more talented (because I was prob a 2:10 800 runner then), but maybe not."
... is that you might have an easier time with this than I did, because you are at a higher level than I was in terms of speed, and you are a frosh. So it might not take all the stars aligning in order to hit PRs for you. But don't expect to run a PR every time out, you will be disappointed.
Run the 800 and 1600 and 3200, but not in every meet. I would even run the 400m prob every 3rd meet. Just put together a distance-runner or MD 4X400 team if your coach will let you.
When I ran, we ran a LOT of meets, like 17 in outdoor season. I ran the 3200 every time. I would not recommend that. Try the 800-1600, then the 1600-3200, maybe even the 800-3200. And add the 400m as much as your coach will let you.
Unless you need points, do the 3200 as a training race.
So, 74 is close to your goal pace. Try it this way:
1st meet - 74 - 80 - 74 - 80 - ... - for 8 laps = ~10:15
2nd meet - 600 at goal / 400 in 80 ... for 8 laps = ~10:10
3rd meet - 800 in 2:28 - lap in 80 - 800 in 2:28 - lap in 80 - 800 in 2:28 = ~ 10:05
4th meet - 1000 in 3:05 - 200 in 40 - 1000 in 3:05 - 200 in 40 - 800 in 2:28
5th meet - 3 laps at 74 - 1 lap at 80 - 3 laps at 74 - 1 lap at 80 = ~10:05
This is like a callousing workout or a "drill" Dellinger used to call it. By your 5th 3200 you will know what that 4:54 first 1600 should feel like. In your last three big 3200s you can go for broke and shoot for 9:50.
You don't have to do it this way, but I wish I had. I chased the sub-10 from February until May. I started with a a race that I did a 5:01 middle 1600 ... and I died ... to the tune of a 10:20. Then outdoors I was always going out in 4:54-5:02 and notched a 10:17, 10:14, 10:12, 10:08, 10:06, etc. but not in that order.
It took tapering and really trying to push that third 800m (from 1600 to 2400) to get my first sub-10.