Crazy?

Am I actually crazy? I don't feel crazy..yet I know its not normal for people to spend as much time as I  do thinking about suicide. Its become almost a constant thought, especially when i'm alone. Other than the fact I want to escape life, I have no solid reason for needing to die. Life is my reason. I know I shouldn't find everything so difficult but I can't help it. I didn't get an assignment in on time this week. I'm already failing my degree, though I haven't admitted this to anyone. To be honest, I'm not down about not getting it in on time. I'd already made my decision by the time it was due so it doesn't matter anymore anyway. Short post cos ive been working all day followed by partying for past 3 days and im tired. Very very tired. Might actually sleep more than a few hours tonight which would be nice..but not very likely.