I am so weary of this and I dont know what to do?

First of all I am being treated for an anxiety disorder. Also I have just been diagnosed with sleep apnea from a deviated septum. I am a university student in grad school and the symptoms have been going on for 2 months now. Sleep apnea has cause svere sleep deprivation and being sick all the time because the sleep deprivation has weakened my imune system. I am getting surgery in a month to correct this problem but it is making it hard to perform at my best at schoool which is really stressing me out. It takes three seperate alarm clocks to wake me up in the morning. This morning I was a little late getting up. My dad is staying with us for two weeks till he gets an appartment in the city (parents are divorced). My dad doesnt think sleep apnea is a real condition and got angry when I got up 1/2 an hour late so he sprayed me in the face with water 'to wake me the hell up' and then said that i might as well quit school at this point if I cant even hack it. then he started freaking out and yelling and throwing some of my books in the garbage can and ripping my notes. I was too upset to go to cl this morning and scared of what he would do to the rest of my belongings. My father has an explosive temper and it makes me very anxious but my mother does not seem to see this. I really just want my father out of the house because i know that anything I say could potentially trigger an outburst. My mother did nothing. I have already missed cles for my illness and thats kind of a big deal in grad school since the cles are seminars so what am i supposed to tell my professor about today? I am not depressed just very weary of my situation. I long for sleep all the time.