I need to update my email but I don't remember my password to change it.

Hello!

If you're unable to access your original email address or you're not getting the confirmation emails, you will need to contact the Zoom support team for assistance: 
https://support.zoom.us/hc/en-us/articles/201362003

Hope that helps and please make sure to mark the solution as accepted if this information is what you needed.

Rick