Mommy Mode?

I long for my bundle of joy , i pray , i prepare. I want nothing more than to be blessed with a beautiful healthy family. I live for the day i get to hold my baby in my arms. BUT will i click into mommy mode once i have my own? Basically I find myself getting agitated sometimes with other kids like my nieces , nephew's , little cousins etc. Everyone raises their kids differently and sometimes they can be a little on the "undisciplined" side. I love them all to the sky and back , i love kids period! They make me so happy , but sometimesssss. Lord! Lol. I know as a mommy im going to have those moments when i just have to take a breather because my kids are being a little on the crazy side. But will i have more patience when i have my own? Will i click into mommy mode?