What would you say?

What do you say, internally (or externally, I suppose) when everything just becomes overwhelming? I'm not talking about the usual four-letter suspects here .... any phrase that presents itself as a last ditch alternative to screaming.

My recurring plaint is, "I want to go home."

I don't even know where that is. It seems to want to be an island, but it's all very nebulous.

I want to go home .....