It took me about a year before I stopped getting any legitimate email at my gmail address. Start changing everything you can to your new email address at a doma

It took me about a year before I stopped getting any legitimate email at my gmail address. Start changing everything you can to your new email address at a domain that you own, and start forwarding your gmail to it. Every time a legitimate message comes in to your old gmail address, tell that person about your new email address, or update your email address with that service.