If she is your Mahram, you have to deal with her with respect and make her like you and like the things and services you do for her. Bit by bit, try to establish dialogue about daily things and normal issues of life that are not related to Islam. Then you can after a few months insert bits and pieces on Islamic issues not related to her directly.

One of my closest family members (that live with me) are astray. She is much older than me and she sits by herself a lot and rarely talks to me. I try to have good manners but I feel like she doesn’t like me. I tried giving her Islamic advice but it’s just ignored. My dad gives advice to her to but it doesn’t work. Most of the time, I don’t find the good time to give her advice, because she’s busy with school, friends, or using her phone. How can I revive my relationship with her and convince her to turn back to Allah? The main reason I want to save her from Hell is because I am afraid Allah will punish me for not giving correct Da’wah.