Hey Bunnydale.
It can be tough for a while but there is help out there if you need it. If you really don't want to go to AA then check out AVRT. It really is a good option. If you want face to face support maybe try to find a SMART meeting.
It ace that your partner is willing to quit with you. I know a lot of people find it difficult when their partner is actively drinking. Don't worry about not having something planned, maybe just going for a walk will help. Sometimes I found it wasn't good to stay in the same place for too long.
If you are doubting the reasons why you wanted to quit maybe it'd be good to revisit them. I often feel a bit left out because I can't drink, but then when I look back to how things were when I was drinking, I really wouldn't change it for anything.
Give it time, and I hope you feel better soon x