TurboTax skipped asking about IRA contribution in federal

It should have asked about IRA contributions.  Or you can enter it  yourself.  Did you have any other  income besides babysitting?  

Babysitting income is self employment.   You can enter Self Employment Income into Online Deluxe or Premier but if you have any expenses you will have to upgrade to the Self Employed version. Or use any of the Desktop CD/Download programs.

Where to enter business expenses
https://ttlc.intuit.com/community/entering-importing/help/where-do-i-enter-my-self-employment-business-expenses-like-home-office-vehicle-mileage-and-supplies/01/27109

You can type ira contributions in the search bar at the top and it will give you a JUMP TO link to go right to it.

OR Enter IRA contributions under

Federal On left

Deductions and Credits

Then scroll down to Retirement and Investments

Traditional and ROTH IRA Contributions - Click the Start or Update button