I was recently hired for a software tech job, I have a coworker who is supposed to guide me on things, include me in tasks and sort of groom me to be equal to her ( according to the manager). But they sort of gate keep things , they don't include me in conversations and keep me in the dark. While I am getting questioned on what I do in calls ( where the manager is not present). When I think about talking about this to my manager , I am stopping myself from doing that because:

She is the only person who can guide me on things here , no one else is here , so I don't want to get into her bad books

They are like a single point of failure in this project , I am thinking she doesn't want to give up the choke hold she has on the project by revealing things to me ( for her own job security ). So I am afraid my manager will take her side as she is more important for the continued project success.

How to navigate this situation.…