I have 2 fields that need to have data before the record is created...how do I do this?
That's not possible. You can't put data into a record that does not yet exist.
Do you want those fields to automatically enter data at the moment they are created?
If so, there are a variety of auto-enter field options that can be used to do that. The value entered can be a constant value entered in the Data box on the auto-enter tab in field options, it can be a serial number, it can be a calculated value specified as an auto-enter calculation or it can be a value copied from a related record.
Retrieving data ...