Welcome and this is the perfect place to ask your questions.
For me, the insomnia from alcohol was the worst over the past couple of months. I started drinking again after a decent period of sobriety but this time I would start to wake up at 1 / 2 in the morning and would not be able to go back to sleep. I would be anxious, exhausted etc. I really knew that the alcohol was causing it but that 1st drink would seemingly take care of the restless and anxiety. I finally got to the point where I was able to say enough and am now into 3rd day, starting up in AA because I need human contact to stay sober and AA works for me when I work it.
You don't have to add that to your list, but activities with others I think is a huge one as my wife has pointed out several times.
You are moving in the right direction but having the desire to quit and starting on this forum. Keep it up and thanks for your post!