<human>: Give me the gist of the text in a nutshell

Currently I am a Mechanical Engineering major (though I am highly considering changing majors), and today was supposed to be my Calculus 2 final exam. That is, until I slept through all five of my alarms. It is unlikely that I will be able to make up this test, and I will exit the class with an F. I've talked to the professor in person and stated that there wasn't anything I could do, but I am waiting a reply by email that I sent explaining to him what happened. I'll probably end up retaking the course again next semester, but I need help with how to tell my parents, who have known me for getting A's all my life and doring well in math class. We don't have great communication, and I normally I don't tell them much about my life because it has been hard to be honest with them.
<bot>: I've failed a class and my parents expect A's, how to I tell them if it is difficult to tell them regular details about my life?