Now that you still have your device with you advice you reset your password or email. Follow this step please;
Step1: automatically login and click on your profile, then your profile will display your user email, nice you see your email write it down.

Step2: Then click logout

Step3: click login, this time do it manually by filling your user name.
Step4: in the place of your password leave it blank and go beneath to click forgot password. And then click login.
Step5: You will be asked to put your user email so that the forum can send you email to reset your password.
Step6: go the message sent to your email and follow the directive to reset your password.

Please Remember to write those information down before you lost your phone.