Mike,
I've been there. I know about patterns. They feel unbreakable and like you have to play them out until the end because that's just the way things go, the way things always go. Until they don't.
Think about it. It would not take tremendous effort to pour the rest out and then go back to bed. Your addiction doesn't want to do that, but I'll bet the Real Mike thinks that's a pretty good idea. It can be done in less than ten seconds. Do it. I dare you if that helps any.
By any means, please let go of the shame. You have a problem, you acknowledge it and you know something needs to change. This is all good stuff. Not to mention that you are the person who has that power to take just ONE step today to restart that change.
C'mon. Do it now.
I'm rooting for you.