Welcome back Lola!!
I used to think everyone drank too, but that's because I only hung out with or had made loads of friends that drank, because that's how I met them, or I would go to places that only served alcohol.
But after a while I discovered what I enjoyed or liked to do, new hobbies, new interests, and those activities came with people that did things without the need for alcohol, or people who didn't drink.
You can do this, hang in there!!