Check out these tips to try and remember your login.
- If you created the account before November 2010, you will have a login name. This will be your first ever character name.
- If you created the account after November 2010, you will instead have a login email. This might be whatever your main email address was at the time you created the account, or may even be the one you still use now.
Once created, your login name or email will never change.