Do I have depression?

I'm a senior in highschool and I procrastinated a lot through the years and failed some classes which I very much so wish I didn't. But now I'm getting close to graduating and I signed up for more class and I'm pretty much doing homework most of the time I'm awake except for little breaks and fulfilling basic needs such as eating, exercising, etc... But all of this homework is overwhelming cause there's so much and there's little time left to complete all of it and whenever I do homework I think about how much easier it'd be if I just died. I don't think I would go out of my way to kill myself but I don't think I would be entirely bummed out if I was going to get killed anytime soon. I only get these thoughts when I'm doing homework, or think about how much I have left to do, or the mistakes I've made though. Am I depressed or just stressed out?
Do I have depression?
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