I'm so guilty

Ya Allah.. I don't know what should I do. I'm so confused. I'm so guilty! I want to cry! I want to scream! And, I feel that they don't like me! I feel so small. How could this happen to me?! I just want to out from my job because I feel so ashamed. I hope that I can be a responsible but, it can't be. I've just made a mistake!! Oh, God..! Where should I go?? Actually, I love d'children.