The 'pink cloud' is wearing off and I don't know how to handle the boredom

I hit my 90 days yesterday. For the first few weeks, I honestly felt amazing. I was waking up without a headache, my anxiety was way down, and I felt this weird sense of euphoria like I finally had my life back together. I was telling everyone how much easier this was than I thought it would be. But lately, that feeling has just... evaporated. It’s like the color has been drained out of everything.

I’m sitting here in my apartment tonight and the silence is actually deafening. It’s not that I’m depressed, exactly, it’s just that I’m incredibly bored. I realized today that for the last five years, my entire evening routine was centered around the ritual of getting home, deciding what to drink, and then kind of zoning out while I drank. Now, I just sit on my couch and stare at the wall. There is nothing to do. Every hobby I thought I would pick up feels like a chore, and every movie I watch feels like I'm just killing time until I can go to sleep.

I went to a meeting this morning and tried to talk to my sponsor about it, but I feel stupid even bringing it up. It feels like I should be grateful because I'm not hungover and I'm not ruining my life anymore, so why am I so miserable? Is this just what the middle part of sobriety feels like? I'm terrified that this boredom is going to turn into resentment, and I know from experience that resentment is what usually leads me back to a bottle. I'm trying to stay disciplined and keep showing up to the meetings, but some nights it feels like I'm just going through the motions. How do you guys deal with the emptiness when the initial excitement of being sober wears off? How do you actually learn to live a life that isn't centered around the next drink when the 'newness' of sobriety is gone?