Alcohol+drugs

How do you resist this combo? I might lose my room because I drank again and blacked out and apparently caused havoc for my house mates. The problem is; I dont even remember this stuff. I dont even know why I do this stuff. But the next day I see sht in my Whatsapp and shame hits and I keep drinking because Im not about to deal with that. Alcohol alone OK, alcohol with drugs, dude, if God would really exist he would not allow this sht to exist. How can he expect a simple human to resist that stuff?