I’m so lost, I feel so alone. My mental health is at a all time low, I have no desire to do the things I love. I feel like my family by there actions doesn’t care. I pray to God but I can’t find the right answers to feel okay again I’m depressed. I wanna give up. Please help me pray

I don’t know what to do, I’m 22 My father has mental health issues my grandma expects me to take care of him.
He is a recovering addict.
I live with him I work for a nursing home as well as help out
We got into a fight because I set my boundaries and told him to clean
Now he’s threatening to relapse
I don’t know the right words to pray for or what to even ask God for right now.
But I love my father but I can do this all myself I just don’t have the resources due to being controlled and trapped when he was a addict.