If the property was available for rent all year then you would be able to deduct expenses such as depreciation and potentially the repairs for the roof and water pipe. These deductions may offset the tax you owe on your other income. However, if the property was not available for rent and you used it for personal use, then you would not deduct rental expenses. If the property was partially used for personal use and partially available for rent, you would pro rate your expenses.
If you determine that your property was personal use all year and you have no rental expenses to report, you would leave it off your return completely, just like you have so far.
Please see the below links for more information:
https://ttlc.intuit.com/questions/3195738-if-a-house-is-not-rented-out-all-year-vacant-the-entire-ye...
https://ttlc.intuit.com/questions/2157026-property-tax-and-mortage-interest-deductions-for-multiple-...
