Passwords can be reset by visiting the login page and clicking the link "forgot password?". All you need is access to the email account associated with your account.
Type the email address associated with your account and click the reset button.
You will receive an email from firstname.lastname@example.org with a password reset link in it.
Click the reset password button in the email. You will be taken to a page where you can choose a new password.
Once you have chosen a password, click reset. Your password will be set and you will be logged in.