resign oneself to
resign (oneself) to (something)
To accept that one must do, undertake, or endure something. I've resigned myself to the fact that I will be hated by my peers, but I stand by my decision to act as a whistleblower. He once had artistic aspiration, but he's resigned himself to a career of office drudgery.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
resign oneself to something
to accept something reluctantly. I finally resigned myself to going to Mexico even though I didn't want to. Mary resigned herself to her fate.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.