like a fish out of water
(adj.) Simile phrase that refers to one being in a habitat or position one does not like and is not used to.
I'm like a fish out of water, down here on the farm
Drinking like a fish out of water
Consuming large quantities of alcohol in order to feel comfortable in a place you don't belong.
"I didn't want to be there. So I started drinking like a fish out of water"