何苦来哉/ 何苦來哉 hékǔláizāi why bother
adverb · a rhetorical question meaning 'why bother' or 'is it worth it', often used to express that an action is unnecessary or not worth the trouble; variant of 何苦 hékǔ with the classical final particles 来 lái and 哉 zāi for emphasis.
你这样折磨自己,又何苦来哉呢?