If you feel the need to change you could start off slowly by putting the cot beside your bed with the side off (sidecar) so that you can gently move your DD across when she has finished a feed. I have just started doing this with my 18 month old, mostly to give all of us a bit more space and to slowly transition her to sleeping on her own. If this takes 6 months, I don't care along as it does not stress her. At the moment she seems to be enjoying it.