You need to give it time. It takes time for a child of any age to feel comfortable in a new environment. And if you are apprehensive, as it certainly sounds like from your posts, they will pick up on that as well. I tell new parents that the first day is the easiest for the child and the hardest for the parent. The second and third days are often the hardest for the child. After that it will slowly get better. On average I tell parents it take 2 weeks for a child to settle into a new routine and feel comfortable. BUT that 2 weeks is if they are full time. Part time can take much longer.