I'm glad you are getting help OP.
I think once it affects your life in any negative way it's definitely a problem. From your posts it is affecting yours and you recognise you are using it as a crutch.
I'm an alcoholic. I have severe anxiety and PTSD along with general life stresses that everyone else has. I've always needed a 'crutch' to calm me and blur things. I used to smoke cannabis at nights, barely drank at all only occasionally and I feel that was healthier than my drinking. When I got a job which requires checks I stopped cannabis and gradually took up drinking.
Alcoholism is awful. Please try to get help now before it spirals.
I knew it was a problem when my sister invited me to her house to stay the night. They have really young DC and don't keep alcohol in the house. I was suddenly horrified thinking how can I justify bringing wine on a school night when they don't drink, do I just cancel.. it was like a panic feeling.
I've been at the stage of drinking first thing in the morning then slowly all day. At my worst around 2.5 bottles a day.
I had withdrawals if the alcohol left my system. Shakes, sweats, nausea, insomnia, restlessness. You feel ill. You wake up every morning dehydrated and feeling sick and like stomach been shredded.
I have 'control' over it now, although really I don't. I cut down because I felt such guilt at not being present for my DC and worried they noticed me being slurry or whatever. Also was feeling sick and tired so often. I have 'limits' now - 5 nights a week. 1 bottle. After 6pm only, but try to wait til 8/9. I stick to my 'limits' but whilst I do enjoy my daytimes I've always still got an eye on the clock counting down so I am 'controlling' it, but it's still controlling me too. I'm not ready mentally to have no 'crutch' or escapism so that's why I don't quit completely.
From your posts, you are definitely relying on it due to your mental health. It would be helpful if you can get more support for that, and take steps to reduce stress, along with support to preferably quit (GP or AA or local services). It's not a rabbit hole you want to go further down. You are worthwhile, even if your H doesn't see it. Good Luck.