Speaking as a mom, I would far, far rather help my (adult) kids get sober than deal with the pain of them losing custody of their kids or being arrested or dying. And one of those things is likely to happen if you keep using.

Wouldn't it kill you to see any of those things happen to your daughter? Please take whatever steps you need to get sober. Meetings for sure, treatment if needed (sounds like you think you would need it). Take care of yourself for your daughter's-and your mother's-sake.