Hello! Can I separate different types of income if I already uploaded my entire income as a whole using quickbooks?

You will need to review all the Quickbooks information that was uploaded to your return. If you entered the income and expenses under different account categories, TurboTax should have created separate businesses. The income from Form 1099-NEC may need to be moved to a separate business, depending on how you had it coded in Quickbooks. In some cases, you may end up entering the information manually and deleting the imported entries.