Business & farm

The car was purchased on October 19th of 2019.  My old car 2007 Accord was using mileage for all those years. So only a few months of my 2019 tax return the car, I used mileage.  Did not have many miles in 2019 for two months.  I am assuming I used mileage rate.  I had a lot more miles in my 2019 return on my 2007 Accord.  Not so many miles in my 2020 due to covid and not traveling. I am working with Turbo Tax Deluxe for my 2020 tax return.   I have used Turbo Taxe Deluxe for the past 10 years.  This is the first time it popped up for me to take the depreciation instead of mileage.  Stated that I would fair better this 2020 return.   On my 2019 return, I had only 2097 miles on my 2020 Accord.  At the end of 2020, I placed only 6349 miles. I just want to know if I choose the depreciation, will I be able to change back to mileage in the next tax return year.  I know that if I take mileage, that I am not allowed to depreciate the car the following year.