What would you do

I lost my dad about 3 years ago and my mom is 59, i’m 23 only. I just had a baby boy and it’s her first grand baby. My mom is all i have left I thought having a grand baby would change her completely after I found out. My mom smokes and has COPD and drinks. Yesterday she had bad chest pain couldn’t breathe and went to the hospital they said that her copd is bad and she needs to quit they open her lungs with a machine and said if she smoked she’ll get the pain back. She left the hospital and smoked. Now she’s in pain again. She won’t stop and she’s getting a breathing tank... I told her it’s from the smoking and she says no it’s not and she isn’t quitting and I can’t run her life so don’t try is what she says. I sit there crying about it because i’m only 23 have no dad because he passed and my baby probably won’t grow up to a grandma either because my mom won’t stop her bad habits. I’m really scared of losing her she knows it’s effecting her but doesn’t give a shit. What would you do 😭😭😭😭