If you want to complete them, after you do your first one, you will be okay. Instead of trying to time everything, I have a clock on my phone that has hours, minutes, and seconds. When I walk in, I screenshot my phone; when I get to the line, I screenshot; when I reach the counter, I screenshot; and when I leave, I screenshot. That way, I have everything down to the second, and I don't have to remember anything or count anything. I do mine once I get a good bonus.
Shopping Arkansas, Louisiana, & Mississippi.