InEnduringGrowStrong@sh.itjust.works

LPT: Maybe don’t start comments with “Go fuck yourself”, people might take you more seriously or be more receptive.
🤷

Make sure you test this from outside your network and not simply by using the public IP, but from inside your LAN. Odds are your ISP modem doesn’t support NAT loopback (also known as NAT hairpin).

Buying your own domain.
You can then use whatever provider, or host your email service… but at least you don’t need to change addresses when switching anymore.