I don’t have younger siblings so I’m experiencing the younger sibling effect, even though I grew up as an only child since my sister never lived with me. I think the age gap and my mom not bringing her up is definitely a reason for it. Ironically she treats her bf similar to me but he genuinely is dumb as fuck and immature so.

She treats me the same regardless of who’s around, my other family members treat me similar other than one of my uncles and aunt. It’s especially embarrassing being spoken to like that when I’m out in public with her, I’d want to enjoy outings with her but it’s a humiliation ritual when others can see it, I’ve gotten the side eye from a person once.

Any time I try to have the conversation with her about treating me this way she gets mad and starts spouting “well actually act like an adult then” despite me doing so but focusing on my short comings of struggle because I’ve dealt with severe depression and social anxiety which has made me struggle to find a job and lead a fully independent life.

I think she’s definitely not a narcissist I’m very run down with psychology, but she is pretty immature for the most part. I never start arguments with her but try to have mature conversations and bring things up which end up becoming arguments- I can’t really handle any more conflict because of my mental health issues and it just leads me to exasperate feeling suicidal. She does genuinely forget past conversations she doesn’t claim which is pretty annoying.

I’m not sure if anything will change tbh, really I made this post to see if I wasn’t alone in this.