To reset your password, on the login page at the bottom there is a link that says “Lost your password?” It’s underneath the second red button. That link will take you to the Lost Password page to reset your password if you’ve lost it.
Your second option is to use the “Magic Link” which is the first red button that says “Email me a login link”. You would simply click that button and then on the next page put in your email address (the one you’ve registered with on the site), and click the “Email me a login link” button. You should then receive an email with a link that will log you in to the site without having to use a password.