The Pythia's Cave

[Title means: Free us from Evil, but what's my evil (deed)?]

Ok, I'm depressed.
I was used of always doing well in my exams, but the last two had not gone so well! I did an exam today and took 25/30 (which is my lowest grade), I went to register the vote of Medioeval Archaeology and the professor realized she'd considered right things wrong - so she gave me 26/30 instead of 24, BUT STILL! 
My usual grades are 30, 30 w/ praise, 28 at mininum...

Have I been studying less? Or is it just bad luck?
Either way, I'm depressed.
I have an exam on friday, I hope to pass it well...

Do you know that feeling? 
When you feel that everything around you is FLAWED?
When you realize that everything you touch is ROTTEN?
When you understand that it's always your FAULT?

When you know that your driving your friends AWAY? Because they're right and you're just lazy and arrogant...

Sometimes I just want to stop existing. Sometimes I just want to stop the pain, the GUILT threatening to devour me... 
Sometimes I just want someone to see me for me, to love me for me. 
Sometimes I just wish I could change the past and hope in the future...