burn your bridges
US /bɜrn jʊər ˈbrɪdʒɪz/
UK /bɜrn jʊər ˈbrɪdʒɪz/

1.
bruciare i ponti, tagliare i ponti
to do something that makes it impossible to return to an earlier state or relationship
:
•
By quitting his job so angrily, he really burned his bridges with that company.
Lasciando il lavoro così arrabbiato, ha davvero bruciato i suoi ponti con quella compagnia.
•
Think carefully before you act; you don't want to burn your bridges.
Pensa attentamente prima di agire; non vuoi bruciare i tuoi ponti.