How do I change my email account recovery since I no longer use or have access to that account?

Do you mean your rescue mail address?

See this instructions on how to change that

Apple uses this to send you important account- and security-related information. Most people have a notification email address instead of a rescue email address. But if you don't use two-factor authentication or two-step verification (find out how to check which security method you're using), you have the option to add a rescue email address to your account for more security. You can see this option when you sign in to appleid.apple.com.

Before you can use a new or updated Apple ID, we'll send you a verification email to make sure the email address belongs to you.