I don't know what to do. I've been at my job 5 months now. I feel like I'm a fairly competent person. But I keep screwing up these documents I have to submit for approval and having to redo them. My coworker has to approve them and he verbally abuses me and tells me I need to do better and send them through with zero errors. I told him I would try to fix the mistakes, but he rejects them for things I didn't know were mistakes because he won't tell me the right way to do them. I'm beyond frustrated and it makes me want to quit my job but I like just about every other aspect of it other than the little sh*t I work with. He's much younger than me, fresh out of college, and thinks he's so damn smart. DH tells me that the kid's probably threatened by me and feels the need to have power over me. I really should talk to my boss about it but I feel like I'll be the one getting canned.