It's the stress of the exams. When I did my University dissertation I was an emotional wreck as I was so worried about how I'd do and how it would affect the future. I too had dark thoughts at times and it came to a head in the last few days of my exams where I was awful.
My advice is this: It I normal. Just because you see yourself as in a good situation doesn't mean you can't get worried or shouldn't feel sad. Ice cream tasters can have bad days at work just the same as anyone else. Once the exams are over you'll feel better. You will look back in a year or so and think "Why was I so worried about that?"
Don't feel guilty for your emotions, just hang in there, and You will feel better soon. When things got really bad for me (the day before my final disertation was due) I stopped working and watched my favourite TV show. It really helped. Really, really helped.
Another thing is that before my final exam I was so worried and I'd been up all night studying. In the morning rather than study some more I read some online news. I just so happened that one of the articles I read was very relevant to one of the questions that came up on the exam
My advice is this: It I normal. Just because you see yourself as in a good situation doesn't mean you can't get worried or shouldn't feel sad. Ice cream tasters can have bad days at work just the same as anyone else. Once the exams are over you'll feel better. You will look back in a year or so and think "Why was I so worried about that?"
Don't feel guilty for your emotions, just hang in there, and You will feel better soon. When things got really bad for me (the day before my final disertation was due) I stopped working and watched my favourite TV show. It really helped. Really, really helped.
Another thing is that before my final exam I was so worried and I'd been up all night studying. In the morning rather than study some more I read some online news. I just so happened that one of the articles I read was very relevant to one of the questions that came up on the exam