Hi and Welcome,
I accepted I was an alcoholic, but it still took me a long time to stop drinking. I didn't think I could manage any part of my life without drinking. The truth was, I was making a mess of my life with the drinking. I think the bottom line for me was just to not drink and get through a day, get through the craving. It was the 'getting through the craving' that made it a little bit easier the next time. Each day you get through sober, will help you to feel better about yourself.
It could be that your depression will lift when you stop drinking. Alcohol is a depressant. For me, the depression came first and I had to get that treated.
Please know that there are other ways to make yourself feel better, without alcohol, and you'll find lots of them by reading through these forums.