Feel horrible

But I honestly get soo annoyed with my oldest child.she snores super loud grinds her teeth (working on a mouth guard ) and just seems everything she does is one of my pet peeves. Has only ever felt like their child was just generally annoying ? Honestly I don't even like to admit it to myself that I even feel this way and sometimes I can't even stand to be near her, she's not doing it unpurpose and I feel horrible I'm guessing I'm the worst mom of the year I know this just wondering of anyone else hAs ever felt this way.:(?????