If you were put into your main character’s body and had to live their life for a day, how well would you do in their shoes?

I don’t even know where to begin with my villain protagonist, they’ve made so many choices that I don’t know how I’d justify if I were in their body. How would you guys handle a day in the life of your protagonist?

Edit 1: I’m so sorry that I forgot to be more specific! Regarding the point of your story and your main character(s) arc, it’s up to you. I was getting tired when I made this post and wasn’t thinking as specifically.