If you'd like to change your email and password follow the steps below.
If you've forgotten your password to login, it's easy to reset just go to Retrieving Your Password.
Go to your avatar in the top right-hand corner of your screen, click Edit Profile
EMAIL: In the deatials field you will find where you can change your email.
PASSWORD: Scroll down to the bottom and you will find under Change Password the location where you can change your password, repeat it, then click Save.