I'm a horrible mother

Samantha
I'm going on 5 hours of interrupted sleep since 7am yesterday and I'm about to crack. For 8 months she was the perfect sleeper. Well, apparently she flipped the switch. We've tried everything but she will not let us put her down. She'll be falling asleep and the minute you put her down she screams bloody murder. We've tried rocking to sleep, consoling, CIO. Nothing. She cried for an hour straight last night with no end in site. Changed the diaper, got her naked, turned on her soothing toys, gave her one of her favorite stuffed animals, gave her a fan, tried opening her window in case she was warm. I can't listen to her scream because it gets my blood boiling and nothing I can do makes her stop and I'm a failure. I finally stormed out of her room, grabbed my keys, screamed at my husband that I was never coming back and I'm in the Target parking lot crying my eyes out. I'm a horrible mother. All I want to do is scream at her. Why did I ever think I'd be any good at this?😞😭