I am not coping at the moment

I dont feel ok, I feel like i am going to explode. I have so much work to do at uni and I cant get anymore extensions and I am so exhausted because the last 3 weeks have been so busy i have had hardly any sleep. I usually need "recovery time" in between major assignments but I have had none and I have one due tomorrow and it is only half done and another due next week as well as 4 in class tests/quizzes over the next week, my exam time table is a mess and I literally have no time to study for my exams and that means it will be another 4 weeks before i can even take a long enough break to sleep. I have 2 other major things i am supposed to be doing which also cannot be put off. I havent had a meal in 3 days because I dont have time to cook or do the dishes and have been eating cereal without milk because I ran out of milk. I feel physically sick and yesterday tried to go to the bathroom which isnt far away and ended up laying on the floor for 20 minutes becaue i felt so exhausted I feel like i am going to be sick right now and I still have to keep up with the 40 hours per week of usual class work. I cant even sleep for the few hours i have because my head wont shut off and I cant even take one day on the weekend because i have to do my washing and cleaning and shopping and more assignments and study for a test. the assigment that is due tomorrow i have spent the last 10 hours working on and still have over 1000 words that i have to write and is worth 40% of my total grade and I already got an extension and i dont even feel like i am awake and i just cant do this i am so tired and i feel sick and i cant even cry because i just feel so disconnected and I have 5 hours of classes tomorrow with no breaks in between and i just cant do this. I dont understand how they can expect this much from anyone let alone someone how is already dealing with a heap of other things as well. oh and i am poor at the moment well i am alwways poor but I had to spend over $1000 on medical in the last 3 weeks I just dont get it how are people expected to live like this.