I couldn't help a friend while I was drunk.
Why couldn't you help them?
Because I was too drunk!
You should be careful with your drinking. If it interferes with your ability to help people, you should get help.
Don't be a shitty person like that. Just because my drunk brain isn't functioning I'm going to abandon my friend? I don't think so
It's one thing to not help a friend because you were drinking one time, but be careful it doesn't turn into a regular thing. Your friends won't want to lose you to alcoholism.