New baby and toddler?

I am due in 5 weeks with my second daughter. My toddler is currently 21 months old. Since the day she was born, I have spent every waking moment with her. She’s been left with grandma 3 times for date night, but never overnight. I’m a SAHM, so she gets my attention all the time.

My husband will get 12 weeks paternity leave. She adores him, so I am hoping the special time with daddy helps her adjust to the new baby. I am just so worried. Additionally, I worry about how I will feel. I will be sleep deprived and constantly nursing the new baby. I worry about the bond with my toddler being impacted, and truly missing her. Sigh.

Can anyone ease my worries and concerns? Any tips?