You could do a leech (flush - hate that word...) and tickle the N up a tic on the bloom nute
but, You already have high N sign.
Kinda late now.
Good news is it will finish...It will never really get back to producing the highest possible quality but, it will make you happy still!!
It'll finish faster then not being high P.
It'll still bulk but, not as much as keeping things green and happy till the end times...
Most people wouldn't really notice too much. Till of course they have some years under their belt..
Knowledge? Decades+, so yeah....I guess so
You shouldn't worry. It'll finish out......Give it a few runs and you'll improve with each one.....