So over it

Tia
Me and my sister have never been close she is 24 and I'm 20 and she has two kids four and two and I have one girl who is 15 months and a son on the way due July 15. My partner had a previous relationship and had three children two boys and a girl. My sister is constantly trying to tell us what to do and how to do things and is always saying wait till he's here you don't know what hard is and all this crap. Its putting me way down I hear it every day and even when I go off at her she says goodluck in a smartass way. My partner is over it because he's 30 and all up has four kids and one on the way and she tries to say he's got no idea, I just don't know anymore I'm loosing my excitement for my son :( just venting