I had my wisdom teeth taken out over a month ago and I'm not sure if I developed a dry socket or not?

I’m going to call the dentist anyway when they are open tomorrow but I also wanted to see if this could be anything else.

I got two lower wisdom teeth removed a little over a month ago. The left side is now healed, but the right side still has a little hole. I’ve noticed it getting smaller and smaller, but gradually. The tooth there was sideways, like really horizontal. So I assume the hole must have been bigger or something, and the doc had to take it out in pieces. But all this time I assumed that what I was looking at there was a blood clot but then my mom shone a flashlight in my mouth to see herself how it was coming along and now I realize the hole is rather dry. There’s a sliver of white there and I’m not sure if it’s bone or not. I don’t really want to touch it. I’ve flushed all the time after a meal and I can’t imagine what it is. They say dry sockets are really painful and have radiating pain. I have absolutely none of that. Nothing. So that makes me think it’s NOT a dry socket, but I’m still a bit worried as to why it’s been over a month and it hasn’t closed yet.

I started drinking alcohol a couple weeks ago. I was hesitant to go back to having drinks again until after I knew for sure everything closed, but my mom persuaded me that it was no big deal. Isn’t alcohol a blood thinner? Could it have technically thinned the blood clot?