I'm hearing a lot of uncertainty since you aren't too clear cut on what your goals are. I think it is fine, grad school will teach you lots of skills that can set you up for various fields. We often do a lot of mindreading when we first enter grad program, but everyone comes from generally different backgrounds and thinking. Some have strong research skills, some have more volunteer experiencing. We all see like a bit of imposter syndrome and we try to put ourselves out as capable. It is normal to doubt. But you are in a grad program and that means you are here to learn and to make mistakes. Hope that makes sense.