You can deduct your mortgage interest and property tax if all your deductions are more than the Standard Deduction . Your state might have a First Time Homebuyer Credit but not the Federal.
For 2017 the standard deduction amounts are:
Single 6,350 + 1,550 for 65 and over
HOH 9,350 + 1,550 for 65 and over
Joint 12,700 + 1,250 for each 65 and over
Married filing Separate 6,350 + 1,550 for 65 and over