Recurring email

I have multiple sequences in a campaign to inform my members their licence is running out. So to remind them I have set up a sequence to send out an email 14 days before. Another 7 days before and lastly on the day it expires.

Within each sequence I’ve put a time delay based on the expiry date to add or remove a tag so that I have an active dashboard of this. sequence block?

Do I actually need the tags to have a time delay if they’re in that specific. This is my 7 days till expire sequence.