Mothers with multiple children

Hey mommas just need a little advice and tips from you. I have a one year old daughter and I will be having another baby in September. My daughter is already super jealous and I’m worried that when the baby comes she’s gonna feel left out and I would never make her fight for my attention no matter what. I just want her to know mommy still loves her the same as I always have even tho there’s gonna be another baby. I just need advice and tips on how you ladies did it, how you do it?