Insomnia

For the last two weeks I've had problems sleeping. I will go to bed at 8-9 take an hour to fall asleep, and then wake up at 1:30 am and can't go back to sleep. This happens every night. Now more recently I can't sleep at all, like I'm up for 24hr or more and only get like 1 HR of sleep when I suddenly pass out watching tv. I've had sleeping issues before, where I'd wake up at the same time every night for over a month and then it'll go away and a month later come back. But now that I am not sleeping at all for days it's becoming an issue. I can't think straight, I'm so exhausted, I'm emotional and have no energy to even eat.