Var.: В слезах горя не утопишь. Плачем горю не поможешь
Cf:
a) Don't cry over spilled milk (Am.). Don't grieve over spilt milk (Am.). Never grieve for what you cannot help (Br.). No weeping for shed milk (Am., Br.). Tears bring nobody back from the grave (Am.). There is no use crying over spilt milk (Br.). What's gone and what's past help should be past grief (Am.)
b) Action is worry's worst enemy (Am.). Crying will not mend matters (Br.). A good relief for grief is action (Am.). The only cure for grief is action (Am.). Sorrow will pay no debts (Br.)
Русско-английский словарь пословиц и поговорок. Академик.ру. 2013.