Back to work

Hello ladies, So I will be going back to work in the next couple of days which worries me a lot. I have a 4 month old baby who is used to being just with mom and dad (this is because we are new in the city and don’t really know people) and if someone else tries to carry her she cries desperately. I know it’s a process but I just can’t help feeling worried about her. I’m pretty sure some moms have gone through this, any tips? Ideas? Any help is appreciated.