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I'm a second-year PhD student at a well-ranked university, and am seriously beginning to feel that I'm an imposter in this place. My lab group is filled with people who ranked in the top 0.01 percent of examinations in their home country, have won olympiads and international competitions, and published an insane amount while maintaining a 4.0 GPA during grad school, while here I am with a scrub 3.5 GPA in undergrad and no publications.
I honestly think that admissions screwed up somewhere with my application and that I really don't belong here. I really want to get a PhD and I love academic research, but feel that I just can't compete against such people.
Has anyone ever gone through these feelings? I feel that I can't speak to anyone else about it because everyone seems so accomplished, and it'd only reinforce my feelings of inadequacy.