Have you tried Goodles? My kids are obsessed https://www.goodles.com/

Yes! The Sunnyside app. It's basically like a low key personalized accountability app that helps you set goals, track and keep them in a low pressure way. I sound like an advertisement but I swear I'm not LOL! For those of us that need a little help in this area it's been great. I have used the soberish plan but they also have a completely alcohol free plan too. Best of luck! I' so much happier when I feel in control of my beverage intake

We did nitrous oxide (laughing gas) for our 4 year old during a cavity and it was enough. We personally haven't used conscious sedation but i've had 4 friends that have used it for their kids this summer getting teeth pulled (or anything more than a cleaning) and all 4 had fine experiences with it. I know that's probably not super helpful. One of my friends said her son was basically asleep when they pulled his tooth, which for 4yrs old I think is ideal.
They can't eat beforehand and I think they chill after while they are adjusting. Also monitored the entire time.