If you think you efiled your taxes, you can confirm that they were transmitted and whether they were accepted or rejected by using this link: https://shop.turbotax.intuit.com/efile/efile_status_lookup.jsp
If they were transmitted and accepted, you should be able to track the refund at the IRS tracking web site: https://www.irs.gov/refunds
If they were rejected, they have not been filed. You will need to fix the reason for rejection and resubmit them.
If you chose to print and mail your return, you must print, sign and mail the return yourself. TurboTax does not mail it for you.