Hi Jo,
So sorry that you can’t talk with anyone about your partner’s drinking. It must be hard feeling isolated especially with a new baby.
Perhaps you would like to contact The Icarus Trust. We are a charity that supports people going through what you are, having to deal with the addiction of someone close to you.
We have a team of very experienced and trained people who are there to listen and provide support and you could be put in touch with one of them if you contact us. They will also let you know what other help is available. Maybe you would feel less isolated having someone to talk with who understands.
You can contact us on help@icarustrust.org or visit the website http://www.icarustrust.org
Good luck.