Green’s Dictionary of Slang

(US) to overcome a problem (of one’s own making).

2008		Simon & Burns ‘Cradle of Civilization’ Generation Kill ep. 2 [TV script] When [he] sees fit to unfuck himself, [...] I’ll turn First Recon loose.
2017		Z. Quinn Crash Override [ebook] As long as we were busy unfucking our own accounts, we were happy to look into unfucking theirs, too.