OH?
Just WHY do you 'need' to do this??
Because I know when I don’t, at least regularly, I’m not the same person. I don’t have as much patience throughout the day, don’t have as much desire to avoid sin throughout the day, don’t care as much about other people throughout the day, I’m just not, generally speaking, a nice person throughout the day if I neglect my time with Mary and God. That’s experience talking. If yours is different great for you. More power to you.
All I know is what I know from my own experience. And it shows me there isn’t any downside to praying the Rosary every day. In other words, given what I wrote above, if the Rosary is some demonic devotion disguised and designed by Satan himself, he sure did screw it up.