Mortgage interest is an itemized deduction and if you are taking the standard deduction on your 2018 return, then none of the itemized deduction amounts entered will be reflected on your return. See more information below.
https://ttlc.intuit.com/replies/3302313
You can also preview your 2018 return before filing it by taking the steps below:
https://ttlc.intuit.com/replies/3302322