Do you know what your email password is?
You might be surprised at just how many people don’t know this vital information. If you don’t have your password you will not be able to access your data, and yes you do have a password, even though you may not remember creating one, you had to in order to make an account.
There are two very simple solutions, use a program that keeps all of your passwords safe and available or write them down in a safe place, preferably two safe places. I have only used one password program personally and it’s a paid for one (about $10 a year) called LastPass and it works great! There are many free alternatives out there but nothing I can personally vouch for.
Most services will allow you to setup an alternate email for recovery and/or a phone number to which they can text an activation code to allow you to change your lost or forgotten passwords. I highly recommend that you setup both of these options so recovery of your password is quick and easy.