Not getting along with my nephew

TW: I don’t think I’m gonna get along with my nephew

I’m trying not to hate on him even though he’s 5 years old and he’s just a kid and I know I shouldn’t let whatever mean things kids say get to me. But I just get the feeling I don’t think we’re going to get along I didn’t do anything mean I think. Literally I don’t think I’m narcissistic or anything but he says comments that I’m a bad person that I don’t have friends. I tried telling others about it like my mom but they don’t believe me. I mean they always side with the kids but with me I’m the crazy single adult. I mean the thing is I literally feel this way where I really don’t have friends and I’m not trying to blame the kid and it could be what he’s been exposed to by his parents (my sister) and what they say about me. That I’m a loser or some sorts. I don’t like being this way and I hope there’s something that can change or go around and I hope both my neice and nephew grow up to be good people but with that’s going on in this generation I don’t know. But this is just a rant that I might delete later. Since I sound like and adult hating on kids. And everyone is going to side with kids and that I’m a miserable person. But the thing is I want to though but I don’t know if I get along with anybody lately. I mean my whole family doesn’t treat me like a human they either avoid me or bombard me with many other chores that I don’t even know and I just get overwhelmed. It just threw me off today. What I thought would be a nice hello from a far turns out to be another call to bombard me with things.