You can recover both your username and reset your password, by using your email on the password reset form.
The email that you receive will contain your username and a link to reset your password. If you do not need to change your password, simply delete the email and login with your recovered username. The password reset link expires in 24 hours.
If you are having trouble recovering your account, please contact support by clicking the ? Support button in the bottom right. Alternately, you may email support directly at firstname.lastname@example.org.