Need advice. my babies will be 1 year apart anyone been in this situation?

i am very excited i will be having another baby in 6 months. My baby is now 7 and a half months old and I am starting to get worried about if I will cope ok or not. We planned to have another child close in age but now my baby is not sleeping well and because my husband works night shift I am scared that both babies will need attention and what if I cant be there for both of them at once? How did you handle it if your babies were born so close together. Thanks in advance!