burn your bridges
US /bɜrn jʊər ˈbrɪdʒɪz/
UK /bɜrn jʊər ˈbrɪdʒɪz/
1.
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.
•
Think carefully before you act; you don't want to burn your bridges.