I finally got to Inbox Zero in my personal email inbox. I migrated all my personal email accounts over to gmail and went from there. Took me a few hours but feels good. Ended up using labels for Family, Friends, Purchases, Registrations, Finances, etc.
I’m going to attempt to do the same thing in Outlook for my work email. The only issue being that there’s 33,877 emails there, so I’m guessing it’ll take me a while, even with Outlook sort & search.