The FAFSA is the only application required to start the financial aid process.
If you are offered admission and selected to receive a scholarship, your admission letter will contain the amount of your scholarship. You will be able to verify the amount of the scholarship on the Wheaton portal after you set up your e-mail address.
See a list of institutional scholarships for graduate students here.
You can always monitor the status of your financial aid by logging into the Wheaton portal.
As an accepted student, once you create your Wheaton account, you will be able to access your financial aid information and respond to your loan offer.