alcohol definitely shuts down some of the anxiety, makes the shy less of a thing. i was a complete lightweight, too, so half a cocktail was enough to loosen up. never life of the party, but i could engage and not be a wallflower.
but when i was back to sober, i'd have so much more anxiety about how i had been perceived while i was less inhibited. and recreational drugs, including alcohol, leave me super depressed when i'm back to sober.
i will still talk the ear off the people i'm most comfortable with.
ferrets are like kittens that never become cats. they get a little slower with age, but given they start like they're running 3 times faster than the rest of the world, it's not noticeable until you get a young ferret again.