New PhD student and Imposter

Hi, there So I'm actually a new PhD student and wanted the perspective of other professors.

I got admitted via 2 interviews with my supervisors and position is funded by their project. I'm really worried about that it feels like I know nothing about the project.

I do have a direction that I wanna go into, but when I think about the papers, project it's like I'm blank when someone asks me where exactly I wanna lead this project to, maybe it's cause I had rough time with a mentally abusive supervisor before.

Is it normal? Am I suitable for the position?