like Skye says, if it's a one off bubs will probably be ok. How are you? Please be kind to yourself ok.
If your coping mechanism when things get really tough is to get drunk maybe you should be proactive about it and talk to your midwife. She can give you a referal to a counsellor who can help you with other coping mechanisms. One thing I can guarantee is that after bubs arrives there will be some stressful times so you may as well figure out how you will cope with them now.