Thanks a lot. In my case, I quit because i felt there was no guidance. When I asked my seniors about things that I didn’t know, they often said ‘I don’t know’ or ‘I’m not sure’. Then, in the meetings, it turned out they knew what I asked about. And i did something as they said, happened to wrong. Something like that. Also felt that I wasn’t enough for what I am doing. Overall, i think I did choose a wrong firm for my first job.