It would be the best idea to take your baby to see your paediatrician for a full neurology workup. Children behind in milestones must be evaluated as soon as possible to get the best possible outcome with therapies.
How is your daughter doing? Did she have newborn screening when she was born?
Your daughter seems to have a developmental delay. There are children who have delays in their developmental milestones and are still considered within the norm.
I agree with the previous post that there is a need to have your daughter evaluated by her doctor. Appropriate therapy will be given once there is a definite diagnosis.
Good luck and God bless you always.