Sleep training isn't about leaving your LO though so it's fine if he needs you more, just give more. With the BW methods you do what is needed to support your LO and if that takes longer then it takes longer. What are the options? Sleep in arms and sleep train later? Or begin in arms with shush/pat then put down in the cot when ready and continue in the cot? Either is fine. Often sleep training is more about when Mum/Dad is ready rather than when LO is ready. It depends very much how you feel.