I don’t want to be this person anymore

I drank today after work. I tried to hide it from my wife but she knew. She’s pregnant and I told her I’d quit with her. I feel like a failure. I’ve never posted here before, never attended AA, but it’s time. I’ve let alcohol nearly ruin my life several times before and I just keep doing it. I need help and reading through these posts gives me hope that I can find it.