I set up auto forwarding from my Gmail to my Protonmail and an auto reply from my Gmail that informs the sender that I have a new address (not including the new

I set up auto forwarding from my Gmail to my Protonmail and an auto reply from my Gmail that informs the sender that I have a new address (not including the new address). After a few months of this I had everything switched. I still maintain my Gmail account, but no new mail is going through it.