The first time you go to the Payment Site it will make you setup a Profile
Where it asks for your Email in the "Create New User" section, put in the same email address you use as your Friend ID and click the Create New User button.
On the next screen, enter your First and Last Name and click the Save button on the right of the name boxes. Here is also where you can also choose to add a secondary email address or mobile number to get texts about account information. Those are optional.
When you are done on the Personal Profile screen, you can click the Payment Profile choice at the top to setup and save your Payment Method (or you can do this when you make a payment later)
You can also, optionally, click the Security Settings choice to setup extra security just for this Payment System (this is in addition to the normal Multi-Factor Authentication you login with). This is also optional.
Once you are done with the items you want to setup here, click the House Icon 
choice on the top Left to show the account for the student. If you have more than one student, there will be a Select Student choice on the top Right where you can choose which student's account you want to see.
