You can set up your account on "Personal Profile" page. When you open it, such tabs will be available there:
User Information
Here you can find your personal information which can be added to your account such as Full name, E-Mail address, your Position in the company and Phone number. You are willing to edit it if you need but you have to save the changes if you want new information to be displayed. As well you can set up your time zone.
Password
If you want to change your password, you should proceed to ‘Password’ subpage. Here you need to enter your old password, then new one you want, confirm new password and click on ‘Change password’ button. Please, pay attention for password requirements
Notifications
This subpage lets you decide which messages and new you want to get on notification icon. There are checkboxes near each type of notifications, just choose the ones you need. As well, you are willing to choose language of notification messages. Please, do not forget to save changes