Also keep the long view. Don't stress about one workout, one week, or even one month of training. Meaning, don't feel like you have to hit specific times or the workout is a failure. This is a major trap that can result in a negative spiral.
Instead, relax and focus on appropriate effort levels. This means that sometimes you will be beat from weeks of hard training and your times might slip a bit in a workout. That is ok, because when you are fresh your body will recover and your training will push you faster than ebefore if you have a good coach writing your workouts.
I wish somebody had told me this when I was a freshman in college. I became more and more terrified of ruining my trainjng that was going so well by not hitting increasingly impressive (for me) times in workouts.
I ended up pushing way too hard as the season went on and it resulted in me running 1:57 in every month from december through may wheni had been sure I was on track to run 1:52 that year. If I had just relaxed and not pushed myself into overtraining in the mid season, I probably would have hit my goal instead of burning out that season
Same philosophy applies to somebody specializing in 1500/5k too of course, just let it happen and let your times in workouts be whatever you have that day, not what you "need" to run. Our bodies aren't a machine, theywill have good days and bad days, but ultimately the training oays off at the end of the year if we let it.