Clicking your account name in the upper right-hand corner of the screen will land you on your User Profile.
From the User Profile tab, you can edit your name, email, username, and change your password. You can also add a phone number to the Two Factor Authentication Methods section to apply to your account.
If you make any changes or updates, don't forget to hit "Save" before leaving the page.
If you forget your password during login it can also be reset from the login screen by selecting "Forgot Password?".
After selecting "Forget Password?" you'll need to enter your account email address or username and click "Request Password Reset". You will receive an email with subject: "Reset password instructions" with a link to "change your password."