I too was depressed when I first stopped drinking. I couldn't imagine how I'd fill my days without drinking. I felt like I was cheated because I couldn't drink. That was all my alcoholism talking. With the passage of time, and the work I did on myself (with the help of my counselor), I overcame the depression and found that I was even happier sober than I'd ever been drinking.
Give yourself time and attention to get better. It doesn't happen overnight, but one day I woke up and realized I was happy for the first time in a long time.
It was really earthshaking as I'd been drunk and unhappy for so long.
Don't give up now, it
does get better as long as you stay sober.