Do i have a sleeping disorder?

ok i am 13 years old and i never get sleep. last night i stayed up until 3:00am with my sister and it was a school night and i got up at 6:00am and i wasnt tired really. last night we were watching bruno and i kept falling asleep through it and my sister kept kicking me to wake up lol so yeah. but after school today i was sitting by myself all alone at the youth center in the teen room and i was bobbing my head because i was falling asleep. and when i was watching bruno again with my sister and mom tonight i was struggling to stay awake then. but now im on my computer im wide awake again... whats wrong with me?