Under $400 in self employment won't reduce your refund. You don't owe self employment tax under $400. And there was no child credit advance in 2022. That was only for 2021.
Check these changes
Tax Benefits Changing for Tax Year 2022 - The TurboTax Blog
Why did my refund go down?
https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-refund/refund-go-compared-last-year/...
2022 refunds might be smaller. The IRS says....
Refunds may be smaller in 2023. Taxpayers will not receive an additional stimulus payment with a 2023 tax refund because there were no Economic Impact Payments for 2022. In addition, taxpayers who don’t itemize and take the standard deduction, won’t be able to deduct their charitable contributions.
Get Ready now to file your 2022 federal income tax return | Internal Revenue Service
And a couple credits like the EIC and Child Tax Credit went back to the old rules and amounts so you are not getting as much. 2020 & 2021 had special rule changes and higher credits due to the pandemic.
