I am now absolutely desperate and am feeling very angry towards my 2 ½ year old daughter and am at my wits end. I put Isabel to bed at 8pm and she is waking at 2 or 3 hour intervals crying hysterically, shouting and bashing on the door (which I keep closed). I have tried keeping her door open but she just come to our room and bashes and crys at our door instead! She doesn't sleep during the day and I have cut out sweets. I have been leaving her to cry but it lasts so long and now we are exhausted all the time. I seem to be telling her off all the time and really dont know what to do now. I also have a 4 year old and 1 year old son who both sleep soundly. What can I do?