Help!! why cant i go to sleep?

Ok so this is the second night i cant get to sleep. i know im exhausted because i yawn every 42 seconds (yes i timed it) but every time i close my eyes, i just open them back up. last night i went to sleep at 6:21 in the morning and kept waking up like every hour or less. i think i started halucinating becuase it seemed like there was something moving in the corner of my eye and every time i looked nothing was there. its so hot in this house so i put the fan on but i still cant sleep. im so tired right now and its now 4:02. my head is hurting and i kno im stressed about some personal things and having to move but i usually get to sleep by at least 2:30. and when i wake up i feel like i havent slept at all. plz nothing stupid about me hallucinating cuz i dont care right now to put up with some of u smart asses. i kno my spelling isnt all that right now but i dont care.