To change your account settings, you will need to navigate to Account -> Settings.
Here you can edit all your personal information, language, currency (Cannot be changed with active subscription), timezone, date and timeformat.
You can also change your password on this page, and delete your account.
You also have a section to edit your agency settings, which gives your account access to create and manage other accounts in the platform.
That way you can easily manage your clients´s e-mail marketing without having to share login details back and fourth.
Notice: It requires a paid subscription to get access to the agency features.