leaving my baby

I can't handle being a mother. I get angry at her and I've cause her pain. Today she was screaming so bad and I got so frustrated that I shook the stroller and she may have bumped her head then while trying to comfort her she wouldn't stop and I patted her tummy to hard. I've realized that I can't be around her anymore and for her own safety and well being I'm going to move back to my home country and leave her here with her dad.