Any advice

So our baby boy is due march 29th and we already have a beautiful daughter that will be only 20 months when our son arrives. Do any ladys have any advice on raising two kids under two. Im a stay at home wife and mom and my husband works hard and long hours. Im very nervous as to not showing each kid the fair amount of attention and my daughter is very attached to me. Any advice will be helping with raisen two kids under two. Thank you ladies :D