Sadly, many Catholic are like that these days. I have several in my family as well as several protestants. I have lots of experience with this, so feel free to message me if you want to talk about anything. Before approaching my parents to talk, I tried to strengthen my faith. I read many books and the Catechism as well as asking the Holy Spirit to help me know what to say. I suggest being very open-minded and gentle when talking to her. Keep praying and don’t be discouraged. God Bless you!