Investors & landlords

It is a backyard rental ADU that I received rental income on that's part of my main house that I live in.  There's a category under Wages and Income for rentals and royalties under subcateogy EXPENSES / ASSETS (DEPRECIATION) where you can input your overall real estate taxes and mortgage interest.  You can also input these values in the Deductions and Credits category.  Inputting the values in both increases my refund substantially.  My question is if I can/should do so or just input it in the Deductions and Credits category like I would normally.  If I prorate it, how much of my real estate taxes and mortgage interest can you put under Wages and Income?