Is it better to use a standard deduction which told me $24,000 or use itemize ones such as: Tithing, car registrations, donations?

[VolvoGirl]

Use whichever is more.  Do you think you will have enough to itemize this year?  This year the Standard Deduction will be doubling so many people will be switching to the Standard Deduction.  And there is a max 10,000 limit (5,000 MFS) of property tax and state taxes "SALT".  And you can only deduct Medical that’s over 7.5% of your AGI.  Also the deduction for job expenses have been suspended.

FAQ on 2018 changes https://ttlc.intuit.com/questions/4482394-how-will-tax-reform-affect-my-2018-federal-tax-return

For 2018 the standard deduction amounts are:
Single 12,000 + 1,600 for 65 and over or blind
HOH 18,000 + 1,600 for 65 and over or blind
Joint 24,000+ 1,300 for each 65 and over or blind
Married filing Separate 12,000 + 1,300 for 65 and over or blind

[VolvoGirl]

Just enter all your deductions in.  Turbo Tax will use whichever is more.  And even if you take the Standard Deduction on Federal the Itemized Deductions might be better on the State return.