i'm kind of in the hybrid boat.
i think you should go for 18:xx but, in maybe a less focused way. ie, run frequently to stay healthy but don't get down on yourself for missing a day. turn it up when you feel good. When races start back up again, do more of those and try to hit some good times when you feel good.
i've always been into more of a free form training style though.. but that works better in my brain. with all you have going on, might be good to not hold yourself strict to a program at the moment.
the idea there is to just commit to "frequent free form workouts", .. ie running 3d/wk, or 4-5d/wk if you just feel like doing it/feel good etc.. doing some harder runs when you feel like it, otherwise getting in some enjoyable longer runs (really build that aerobic base nice and gentle).
then just crush weights whenever you want.
i think you will hit your 18:xx eventually if: you are hyper focused, or even if you are less focused .. as long as you just stick to running for fun+health, ie 3d/wk minimum, 5d/wk optimal.
you'll hit it in some races eventually and that'll make you want to hit it again.
out of all that, biggest key is just not getting injured. so if you're feeling run down/tired from work/life etc, be completely ok with missing a day or doing something light instead of what you had planned.
so ya i say stick to the 18:XX but, just relax into it. even if you just get your runs in for fun/health/de-stressing, you'll keep making those micro-gains towards permanently improving that foundation, which seems to last alot longer than you think, even after taking time off.
hope that makes some sense, i'm about to collapse/pass out.
that schedule looks good tho.
pc !