Welcome and thanks for posting here in the Community, @butlergretchen.
Yes, you can! And I'd be glad to help you how. To go back to the previously entered transactions, like bill payments and journal entries, please follow these steps:
1. Go to the Plus (create) icon at the upper right.2. Select Pay Bills under Vendors or Journal Entry under Other.
3. Click the Clock icon at the upper left, then locate the bill payment or the journal entry you've saved.
That should point you in the right direction. Please let me know how it goes or if you have other concerns. I'll be happy to help. Enjoy the rest of the day.