Deductions & credits

I thank you again for your excellent help. I followed yours and Ernie's instructions and the 901 for Mileage reduction was applied! As I near crunch time I called TurboTax to verify my return.  Peter, the Turbo Tax help had me to do to Schedule C Worksheet and enter the same Mileage Data that I wrongly put into the personal deductions tab. It gave the same amount and my refund Fed- & owed MD state changed. Question: do I go back to the tab for the adjustment to the Self-Employment Tax and remove the 901 from  Ministerial Business Expense that I placed there? I am concerned that this maybe a double entry? Also, I purchased a lap top for the church, that also was placed in the persona deductions and credits- tab. Am I to place it also in the Schedule C? Thank You!