I’m a mom of 2 I have a 2 year old daughter and a 2 month old son

Before my son was born I wouldn’t really get mad at my daughter or tell her much because I would feel to bad and it would trigger me back into my childhood n mom and I am trying to break the cycle on the negative side lately I been yelling at her and would just get so so angry at things at her I wouldn’t before him being born I just don’t want this to affect her in life maybe I am being a lil dramatic but I just don’t understand where this rage is coming from I immediately feel guilt and just wanna hold her after I get upset for yelling

Is anyone else going through something similar