Assalamu Alaikum.
My mother converted to Islam when she got married to my dad before I was born. However, the older I got, the more I realized how little she knows about the religion and how it is practiced. Sometimes she doesn’t offer Salat in time even when she isn’t doing anything. And she doesn’t fast regularly during the month of Ramadan. We try talking to her about these things but anytime we try, she doesn’t listen and looks at us as extremists. She also doesn’t know most of the things to say during prayers and whenever we give her religious books to use, she doesn’t read them. I know it might be due to the beliefs she has already gotten used to since her childhood due to the fact that she’s the only convert in her family. But I really want her to look at things different. Please can you give me advice on how to convince her to improve on her practice of the religion. Or is there any dua?