All, hello, I'm terribly tired of constipation ? We're on a mixed diet…

All, hello, I'm terribly tired of constipation ? We're on a mixed diet during the day, and at night we breastfeed The baby poops like a sausage, water I give her, she drinks maximum 10 ml per day, It's very difficult for her to poop, I'm giving Nan formula, tried Kabrita and NAN and Nitril, I don't know what else to do?! Can I give her one dose of Nestomil in the morning and then Nan?