My 18 month year old refuses to sleep in her cot. She goes down okay at the same time every night, we follow the same routine every night. We then have to co-sleep (don’t judge) which I wouldn’t have a problem with if she just came in and went to sleep. But she doesn’t she wakes numerous times a night crying and needs to held closely to go back to sleep. We tried the crying out method a number of times in the last year but she gets so distressed she makes herself sick. I just don’t know what to do. I’m exhausted and at the end of my tether. Any tips?