An update!
AH has been in the psych ward for the last few days, and it's been so peaceful in the house. I'm really starting to enjoy my down time from the craziness.
My in laws haven't stopped by the house, and as far as I know AH has refused to see them since he's been in the psych ward. He's finally admitted that he overdosed, and he is getting treatment for it.
I've been going to my meetings and sharing and I'm starting to feel a lot better about myself. I don't know if AH will recover and stay sober, and I don't even know if the things around me will calm down. I don't know if we are meant to stay together, but I finally feel like I can set some boundaries and keep them.
I'm not on speaking terms with my in laws, and I'm really OK with that. Overall I feel like I'm in a much better place mentally, and even my coworkers have commented on how calm I am.
So thank you all for helping me so much!