Scared of change..

So I have 6 year old.. quite settled in my location/home/schooling etc.. now 7 weeks with baby no2 and I am terrified of how much it may all change. May need to move for more room, opposite gender from baby no1, dont think people will exactly like our news but yet me and my SO are happy! I’m just so anxious and worried. Has anyone experienced this or anyone with similar stories would be appreciated.. maybe even calm me the heck down!! 😂