I am really nervous cause I failed my chemistry class and lab this semester. I signed up to take them again next semester though. And I am talking a math class in summer school, but I have to see my adviser first to get clearance on that, so I emailed him to set up an appointment with him and he emailed me back saying he could set up an appointment tomorrow and asking me how I am doing in chemistry, i think he honestly doesn't know bc thats the one grade they didnt post yet but i'm 100% sure i failed bc i was already failing and then i was an idiot and got confused about the date of the exam and missed it. Anyways how am I gonna explain this to him, I know he is gonna think I'm idiot and I'm scared of what he is gonna say to me, what should I tell him when he asks me why I failed. I am really scared. Any advice?