Das ist eine harte Nuss.
“That is a hard nut.”
That's a tough problem to crack.
Leben und leben lassen.
“Live and let live.”
Live and let live.
Ich drücke dir die Daumen.
“I press my thumbs for you.”
I'm keeping my fingers crossed for you.
Nicht alle Tassen im Schrank haben.
“Not to have all cups in the cupboard.”
To not be all there mentally. To be a bit crazy.