Can anyone recommend a way to sleep train a high needs baby? LO had silent reflux (diagnoised at 2 months) and a dairy allergy (diagnoised at 3 months) that made it almost impossible to set her down or let her self soothe for a long time. During the past month we have worked on setting her down to play alone for a few minutes at a time. During the morning it goes well, during the afternoon it is hit and miss. All of this is to say I have no idea how to go about getting her to soothe herself or put her down in her crib awake to fall asleep by herself. I can personally attest to the fact that she will scream for hours and will not calm down or put herself to sleep. At her four month check up last week both of her doctors recommended sleep training without any real instruction on how to get there. I do have some time off in the middle to end of September and am mostly willing to attempt CIO at that time if nothing works until then. Does anyone have any suggestions on where we should start? We were nursing to sleep at around 8 pm. Recently we developed a bedtime routine of bath, bottle, butt change, swaddle and rocking and she's been falling asleep at 6 pm. There is no way to start it earlier because of work. Should we just try shortening or giving up the rocking and putting her directly in her crib?

Sorry for the lengthy post! I am willing to listen to any and all advice on how to start sleep training. It would be extra helpful if anyone has experience with a high needs baby but definitely not necessary. I've tried looking online but my head is spinning and I have no idea where to begin. Help?