Why do we have to fight....

Me and Ashley are having the hardest time to even be in the same room. I tell her to do something she refuses, Steve tells her to do something she giggles and does it. I'm so over this. I cry at night thinking I'm the worst mother in the world and all she wants his him. Why or Why. Why would god give me this angel and then make it hard for me to take care of her. Maybe i wasn't supposed to be a mom. I think I messed with fate in that way and now I'm paying for it. What am I supposed to do. How am I supposed to feel good about being a mom when I have all this trouble. Maybe it will get better soon I don't know, I think I have to pray about it.