Other people in our department rose quickly and now have international reputations. But I couldn't treat people like they did and look myself in the mirror every day.
One other thing that greatly helped me in my PhD was the mutual support of fellow candidates. On my own I would probably have had a breakdown in my final year as the intensity of writing up alone must be intolerable. That is why I was shocked to read the comment above where a supervisor pitted candidates against each other: that is criminal in my view.
I think I agree on this one. Writing your thesis is indeed a stressful thing, but there was always a supportive atmosphere from the other PhDs in my department. Maybe because everyone is in the same boat :)
Looking at other PhD-students around me I would say that those that have few results so far are indeed stressed, but clearly not to those levels, and that the main criteria for their well-being is the quality of their relation with their advisor (if you intend to do a PhD, pick your advisor carefully, you will work with him for the next three+ years of your life).
A factor might be that our PhD tend to be shorter (three years) and that students are paid and have no debts (at least for a PhD in science in France, those don't hold for other fields such as literature).
My impression is that the amount of PhD stress is different in different fields, with higher-competition fields resulting in more tragic overall experience. For example, my own subject was relatively un-populated and even a bit out of fashion, so I was able to publish papers on openly available data taken almost 10 years ago, and even open source some of my code.
That being said, I also got very lucky to have a flexible and supporting supervisor, and to have a proper working contract with my institute with all the social benefits included (yay, Germany!).
Edit: just realized that the above looks too rosy - I had also burned out in the middle of my PhD from overworking, got increasingly cynical attitude towards science and have left science altogether after graduating due to lack of career prospects. However, challenging as it was, I still consider it a great experience.
One thing I emphasize to all the new graduate students/people thinking of grad school is that, of course, pursue research that is interesting, but also to make sure to pick a good adviser, one who's PhD students can vouch for in private. That was key for me and many of the people I know to having a good versus bad PhD.
Saying that though, I also know people in the UK doing PhD's, and they're having a horrible time. I think it's possibly a consequence heavily privatising education, and focus more on monetary profit over learning and inovation.
I don't know exactly why that was, probably a mixture of how it is organized/work culture (Italy is clearly not the US), the extremely caring and human supervisor, and a not particularly competitive field. I would argue that also my fellow PhD candidates were not as stressed as I read here (antidepressants on every doorknob? No way.)
Now that I'm done and I moved to another university in the northern part of the EU, I'm still not convinced, by looking at candidates here, that the PhD is such a tragic experience,but maybe I just know lucky people.
Did anyone here have a positive PhD?