vicious cycle

i still haven't had much inspiration to write....but i'm forcing myself to because i don't want to completely stop. this blog thing is really therapeutic at times. and i need to keep all my wonderful readers informed (even though i'm sure there aren't that many out there lol). i apologize in advance if my posts lately aren't that entertaining or enjoyable to read.

that being said.....i need your help:
lately (well more like for the past 2 months or so), i have been on the worst sleeping schedule....staying up until 3am, then waking up in time for class around 9 but taking an afternoon nap or in time for work around 11 depending on the day. and because i've been taking naps or sleeping in every day, i can't fall asleep at night. i either toss and turn or i'm just physically not tired. and once i finally get back on track, i mess it up by partying on the weekends and not going to sleep until 4am and sleeping in until noon. or when i really do try, i fall asleep by 9pm but then wake up at 6am the next day and then need a nap by mid-afternoon, which throws my body compltely off again and messes up my attempt. so it's a vicious cycle that i really need to break but just can't seem to do. i've even tried to force myself to not take naps by sitting outside and reading or going into the living room to watch tv and do my homework instead of laying in bed to do these activities. but even that doesn't work because i fall asleep sitting up doing homework in the living room or outside on the porch. ughh what do i do to fix this problem?

any ideas out there?? i really hate this. i know it's bad for me...and it gives me awful dark circles under my eyes, which drive me crazyyyy! so please help!! your advice is much appreciated :)