I know everyone wants to live their own lives. Jesus served others, and as his servants, it is good for us to prioritise others first. I see it as God saved us from something, not that your life hasn't started yet, but he's getting you ready for something. The devil thinks he can wrong you "But as for you, ye thought evil against me; but God meant it unto good" He's working patience in you, you would not had have otherwise. Christians, as we age, tend to be happy thinking about heaven, our family and our heavenly father. The fact that she isn't. means she is not currently a Christian and still needs to repent so playing the bible audio in the background might remind her of this fact. It's still essential to practice self-care, such as reading, getting some exercise in, and taking a break if things become too stressful. Also contacting you doctor for antidepressants for your mother will ease alot of the aggression you mother is experiencing. They still tend to be stubborn at times but it's much better with medicine. We will be praying for you God Bless.