Hello there, sophiaduffy.
QuickBooks Self-Employed is designed for a small business. That said, we can only import bank transactions using CSV (Comma-Separated Values) file. You can check with Freshbooks if you can get a CSV file of your bank transactions.
Once you're ready to import, you can do it by clicking the Gear icon, Then, select Imports.

Feel free to check these articles that talks about importing in QuickBooks Self-Employed:
I'm just around if there's anything that I can help. Thanks for dropping by!