My partner has a problem with drinking. She has relapsed many times, but has also had a long period of sobriety. I'm not walking away from her, and I get that it's hard to hear that advice from others. It's what I hear from everyone, and honestly, it makes me reluctant to ask for advice or support.
What I can recommend is that you are taking care of yourself. You've probably heard the saying that you can't pour from an empty cup. We all need to make sure our own needs are taken care of before we can help someone else. To this end, maybe a counsellor for yourself? They might be able to provide some non-judgmental suggestions. Self-care activities are good too. I have found sometimes that I've been so eager to care for my partner's needs that I'm neglecting my own, and that's no good for anyone.
At the moment, the hard decision that I've made is to take some space for myself. I've made it clear that I love her, that I want to help her, but that pretending that everything is fine (she's currently in the mindset that her drinking is not a problem, that she can handle it, etc) is not helpful to her or to myself. Some might view this as an ultimatum. The important thing there is to make sure that you can follow through. It is the hardest thing I have ever done. I want to support her so much, but until she recognises that this can't go on, no matter what I do, it will not help.
This is going to be a hard road to walk, but I'm walking it too. You're not alone. Only you can decide whether or not it's worth it.
I wish you the very best. Take care of yourself.