Once you are logged in, you can update the password in your record by following these steps: 
Click on the My Data in the top left corner;
 In the left side menu, click on Edit Member; 
Now you are in your record, click on the Login tab; 
Under the Login tab, you will see the Username and Password fields. Ignore the asterisks in the password field and type in your new password. Be sure the password meets the required minimum 12 characters containing upper and lower case letters, number and special character. 
Click the Update button in the top right corner of the window. 
Now that the password is updated you should logout by clicking on your name in the top right corner of the screen then click the Logout button. You will see the option to go back to the login screen once you have logged out. 
Re-enter your username and password to get logged back in with your new password.