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

1.
Brücken abbrechen, sich alle Wege verbauen
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.
Indem er seinen Job so wütend kündigte, hat er wirklich seine Brücken abgebrochen zu dieser Firma.
•
Think carefully before you act; you don't want to burn your bridges.
Denk gut nach, bevor du handelst; du willst nicht deine Brücken abbrechen.