I NEED A DRINK!

So the other day I was at church and the Pastor said he doesn't see where bibically there is anything wrong with having a drink every now and then. He did however say it becomes a problem when Christians say, "I need a drink!" As most of you can imagine the very next day I "needed a drink". But because just the night before the pastor said Christians shouldn't need a drink I yielded to temptation. Now a week later (exactly) I REALLY "need a drink". So, is it wrong to ask for forgiveness while committing this trangression?!?! I really need to know!