To get to the settings pages, click on your profile picture and name, and click on Settings in the menu.
Let's explain the fields in the General Settings page:
Avatar: this field let's you change the avatar of your profile.
First/Last name: this is your first and last name.
Username: this is the username that your subdomain gets for your products and your public profile page. (e.g. myusername.pocketsflow.com)
Support email: this is the email that we sent your customers so they can contact you for support and help.
Address fields: this is your address.