TurboTax should determine which is best for you, itemized or standard deduction. You would only itemize if your total deductions exceed the standard deduction for your filing status. Review line 12 of your Form 1040. This will indicate if you are itemizing or taking the standard deduction. From the menu on the left, choose Tax Tools, then Tools. Select View Tax Summary. From there, you can select Preview my 1040 from the menu on the left to view the return in greater detail.
Remember, some itemized deductions are limited. Itemized deductions include medical expenses in excess of 7.5% of AGI, mortgage interest, state and local taxes including real estate taxes (capped at $10,000), and charitable contributions.
You can review the deductions in the Deductions & Credits section of TurboTax and see if anything pertains to your personal situation.