I went through this a few months back and am sure it wont be the first time... after trying everything..what works for us is to sit in her room, just somewhere she can see us. First few days she cried a bit while looking at me but settled within 10 minutes. Sometimes (though not often thank goodness) she will be on all fours grinning at me at 10pm at night!! i just sit there till she gets tired n settles coz everything else made it a lot worse. Goodluck.