If you are really concerned, ask your coach. That is (hopefully) a benefit of running in college, a coach who knows what they are doing.
If I was you coach, I would say: mileage mileage mileage. Get ready to do more than you ever have. I’m on a pretty moderate mileage D 1 team, an most the team still averages 80mpw. (We made it to ncaas last year, so my coach knows what he is doing)
Set a goal this summer to reach a peak mileage that is 5 or 10 higher than your last successful maximum. For example, if you have previously done 60 mpw pretty consistently, shoot to get up to 70. Keep your mileage pretty easy, no workouts. Cross is a LONG season, and if you do workouts in the summer, you will likely be toast by October. Run a good long run each week that is 20% or weekly mileage, run a moderate long run that is 15% of your mileage, then just get the rest in as easily as you can, potentially running some doubles if you are running more than 60mpw.
Don’t run to fast, the multi all American on my team does the majority of his runs around 7 minute pace. I have heard that aerobic development is a function of TIME of stress, not mileage. In other words, 8 miles in 60 min is probably better than 8 miles in 55, because you are working 5 min extra, plus your body isn’t getting as beat up, and you will be better able to do more the next day.
You don’t get good in any good run, week or even any single summer. Get into a patient, methodical mindset.