I want to die

Cant sleep, and I feel really tired, my brain isn't workign properly, I want to cry but I know that crying will make me feel even worse. I feel like some function inside my brain is glitched. I feel so tired, so physically destroyed but I cant sleep. Last night I went to bed at 1:30 am couldn't sleep so I decided to get out of bed at 4:30 am just to pull an all nighter.