Base phase for sub 17 5k

3 workouts a week during your base? Cut out the 200s and just do some 60m-100m strides after all distance runs. Also, I'd change the 1000-2000m workout into a fartlek or other LT workout.

i feel like, based off your prs, that 7-7:30 pace is way too fast for you to train at every day. Throw in some recovery runs after workouts (like actual recovery, not a regular easy run) and maybe even slow down the day to day pace because if you can go and run at 7 minute pace (and tempo at 555-605) then i think youre not giving yourself enough recovery as your prs should be better based off that. but because of the prs, that says you might be a little over zealous about the easy days pace wise

Like they said after your workouts have a recovery day. I dont care what my pace is usually on non workout days. I just go out and run however my body feels. Some early mornings, 0500 all I can do is 820s and some days I am 720s. You need to listen to your body. Also, like the others said, two workouts a week is just fine.