To View Your Current Account Settings
Click Account Settings in the upper left part of the screen. The current account settings are displayed.
To Edit Your Current Account Settings
Change any value in the General section, such as your First name, Last name, Email address, City/Town, Country,Timezone, and Description.
Changes can be made in other sections like User Picture, Additional names, Interests. Once you are done making changes, click on Update Profile.
Resetting Your Password
To reset your password, you will have to log out from the current profile and click forgot password on the login page.
Click here for details on Forgot Password.