have your cake and eat it (too)

US /hæv jʊər keɪk ænd iːt ɪt tuː/
UK /hæv jʊər keɪk ænd iːt ɪt tuː/
"have your cake and eat it (too)" picture
1.

avere la botte piena e la moglie ubriaca, volere tutto

to want or try to do two things that are impossible to do at the same time

:
You can't have your cake and eat it too; you need to choose between your career and your hobby.
Non puoi avere la botte piena e la moglie ubriaca; devi scegliere tra la tua carriera e il tuo hobby.
She wants to work full-time and also travel the world, but she can't have her cake and eat it too.
Vuole lavorare a tempo pieno e anche viaggiare per il mondo, ma non può avere la botte piena e la moglie ubriaca.