Don’t know what to do about my marriage /husband

Just looking for some help and advice. I’ve been with my husband since I was 14. We have a daughter together who is for years old. My husband is always miserable and complaining. He’s told me times before that. He wanted to kill himself because he was that depressed but That same night he told me that he went to go have sex with another woman. He’s also developed an addiction to cocaine. It started as a once in a while. Then his friend started doing it every day now that’s what he does mind you that’s a rich man’s drug, and we are not rich currently left my full-time job with benefits and a 401(k) to go finish my degree and get into nursing school. My husband and I spoke about it before I did anything and he said he could handle it and everything would be all right, and I’ve been taking more of the well even more of the house and my daughter so I try to make sure that he has to do nothing when he gets home have his clothes laid out have dinner cooked daughter cleaned and ready for bed and all he has to do is maybe take out the trash or do small things around the house that I can’t do myself And that seems to be an issue for him. Were you spoken about him going to therapy but he doesn’t have health insurance, but I feel like if I stay with him will lead me and my daughter to a path of ruin that we won’t be able to come back from, which is why I left my current job so I could have enough enough money to support her on my own and get on my feet so I could get out. I knew he was a lost cause when I told him when I used to be depressed, I would think about the fact that everything I do is for my daughter and my family that gives me the courage to keep moving and see the light at the end of the tunnel and he told me that wasn’t enough to put color Back into his life. My mother told me that maybe I should speak to his mother one on one, but he put up such a good front that everybody in the family thinks that I’m the problem even though I’m the one keeping everything together running around with my head cut off, I just want out. It’s not like I’m looking for another companion. I just wanna focus on myself and my child because the mental health I built up from scratch is being torn down by someone who is always miserable and my daughter needs a parent who has a good head on their shoulders. he even disrespects me in front of our daughter. I’m just over it and I’m sick of him.