Sleepy problems. I really can't get to sleep at night and obviously keep sleeping during the day.?

Though I dont go to the school anymore. It's become a real hle and is affecting my studies. Sleeping pills and Psycatrists are out of question since my parents are imbecile. I really need help. Could anyone help me with this wierd problem? I know it's Insomia but I can't get to sleep anyhow. And at the most I can stay awake for 6 hours. I am really depressed about my life and am obese and certainly not happy with myself. I don't even have any friends. It's been like this for ever. Plz help.