How do you get on your horse account when you forgot your password?

Most web services have a "Forgot My PassWord" link; you can follow their procedures by answering your "secret question" that you provided when you signed up.

On this topic, you should avoid giving real answers if the web site prompts you to enter your mother's maiden name or grandfather's birthdate as a "security" question; stuff like that is often available online if any person in your family has EVER done an online genealogy.