Knowing what I know about the impacts on brain chemistry, yes, you would probably limit your drinking as much as possible. It reduces activity in my favorite part of the brain, the prefrontal cortex. That's the part responsible for your inhibitions, which does include shyness but also a ton of other stuff like judgement, attention, temper, etc..
Like, sure, you can be less shy but you can also become an idiot who falls for scams and lashes out at people because they can't control themselves.