I hated giving up my old email address when the domain was sold to a new owner and the new owner just wanted to kill the old domain name. Like you, I had it for 10 years. They did offer email forwarding for a while (like, 2 years), and by the end of those two years all I was getting at the old address was spam. I hope you'll get forwarding.

But I really hated going to all the websites I had registered at, and changing my account info; good luck with all that!