My 2 year old has always happily gone to bed but all of a sudden today she is really going crazy because she doesn't want to go bed. she's climbing out of her cot and crying at the bedroom door. I've never seen her like this. What do i do? I really don't want to get her back up. If I do I'm afraid she do it every night and I'm a single mother and this is the only time i get to myself. please help I'm desperate. She's been attached to me all day and i need a little alone time.