hun you gotta stick to a schedule.
take her in the room, lay her down, and then sit ur butt on the floor in her room, and .D.O .N.O.T .L.O.O.K .A.T .H.E.R!! you sit there until she eventually falls asleep. Let her cry. You have to show her you mean business.
After doing it for a few days it will work. Dont leave her alone. Stay in the room, but each time you sit down , sit closer to the door each day by about a foot til your right by the door. Stay there a couple days then start siting in the doorway. After that point she should have realized u mean business and she'll know that its easier to just go to sleep and get it over with rather than fight it.
AFter that you should be able to just go lay her down and leave the room.