I Don't Know What To Do Anymore.

Okay so Chantelle does not sleep through the night anymore. I swear she wakes up at least 4 times a night now. I don't know how to get her to sleep through the night. If I let her cry she cries for about 2 hours and then I just get up. Is so hard...I don't know what to do. Help me. Give me some pointers please. I can't go without sleep anymore. Grrr. I am so tired all the time. Someone give me some advice. I mean I feed her food before bed. I give her a bath before bed. I do everything you can think of and she still wont sleep. I don't know what else to do for her, and I can't take it anymore. If anyone has any advice please share. I am so ready for her to just sleep at night.