Sleep and nap schedule and caring for a (future 2yr old and newborn)

Taylor

Child2 is due in December child1 will be 2yrs and 2 1/2months old...i need advice on how to get them to sleep and how to keep the newborn from waking up child1..child one is clengy and sleeps in toddler bed. My husband works from 3:00pm too 3or 4:00am. Both sides of the family cant come stay and i cant stay with them (cause having younger childern in school and living out of state...HELP please im trying to prepare myself im kinda stressin and worried...thank yall