You can do this.
You're worth being treated with respect, and it starts with how you treat yourself.
The big fat lie is that drinking will make you feel better. It won't. Play the tape forward till tomorrow.
You can wake up feel fresh and in a balanced mood and content with yourself for not drinking, or you can wake up hungover, sick, and feeling like crap for breaking your promise to yourself, and regretful for something you may have said while you're upset.
Personally, I am in a much better position to have a conversation with my partner that gets the results that I want when I'm well rested.