I didn't finish filing my tax return on TurboTax last year and was due a refund with state and federal. What process do I need to go through to file my 2016 tax return?

I apparently did not go through the final process of filing my 2016 tax return last year and so did not receive my refund from state or federal. I'm unsure if a glitch with the system happened as I remember going through all the stuff but things happen. 

What steps do I need to take before filing my 2017 return in order to remedy this situation or do I need to contact the IRS?