Girls, save me, I just gave birth today!! I don't understand anything …

Girls, save me, I just gave birth today!! I don't understand anything ? Here she lies coughing sometimes, is that normal? How do I know if she's hungry? And most importantly, how can I tell through two diapers if she's clean or not ? I can't even change her diapers, I'm afraid one time I take off the diaper and then I won't do it right Damn, fear and panic