Identity

My mom remarried and now I have a step sister. I feel like she may be undiagnosed for something because there’s so many things she does that isn’t really normal behavior especially for her age. I tried really hard to be cool with her, but again, it’s like she has the brain of a 5 year old sometimes. I have a cousin who’s kid is in elementary school and the kid and my step sister throw tantrums when they don’t get what they want in the exact same way.

My step sister and I don’t even have a huge age gap. She’s only 3 years younger than me.

Anyway, I tried sooooooooo hard to look pass her bad behavior, but it’s so annoying because it’s really clear she wants everything I have. I constantly catch her in my room going through my stuff, whenever my stuff goes missing I end up finding out she has it, and she tried to take my clothes but because we’re 2 different sizes, she ended up ripping the clothes she took from me and then asked my mom and her dad to buy her the exact same clothes but in her size while my clothes are ripped and our parents become too lazy to replace my clothes after buying the same thing for my step sister. It’s not fair because I would’ve never ripped my own clothes in the first place so money would’ve never had to be spent.

And if she wants something from me, but I refuse to hand it over to her or share it with her, she throws a massive tantrum like throwing objects at the walls, screaming, slamming doors, stomping around, and even rolls around on the floor while crying. And for whatever reason my mom and her dad act like it’s totally normal. Maybe for a kid, yeah, but for our age????????? No wtf!

There’s also a bunch of other stuff that she now does because I do it and I guess she’s trying to copy me, but it’s so annoying. It feels like I can’t have anything to myself. It’s not about being selfish or not sharing, it’s about the fact that there certain things I should be allowed to have for my own. I have a much older brother who graduated college and now has his own place long before our mom remarried. I literally never had any “sharing” problems with my brother ever. We spent time together, shared stuff, but also never had to worry about the other using specific items that’s personal to the other.

For example, the same year my grandpa (my dad’s side) died, he gave me this really pretty necklace and it’s something I really love and take care of. That’s not something I would ever lend out to anyone because it’s very special to me especially since it’s the last thing he ever gave me and my birthday was the last time I ever even got to speak to him. My step sister will hear this information and then cry about how it’s not fair that she can’t specifically borrow or HAVE the necklace. That’s so fucking rude, disrespectful, and so entitled! I would never think about asking if I could have something that was a literal gift to somebody ESPECIALLY if I knew it was given to them by someone who passed away.

This is just the tip of the ice berg. I’ve caught her telling people pieces of my life story as if it’s her own and when I call her out on it she either randomly freezes up (like it looks like her brain is in another universe) and she starts crying which makes me look like a dick in public and she even plays it up by crying that I’m bullying her.

She doesn’t respect my boundaries, my right for some privacy, and she is sooooooo immature and entitled.

She also started doing this thing that has been pissing me off. So her dad and my dad are two completely different ethnicities / are from two very different countries. I love my dad, im close with him, so of course I also embrace a lot of cultural stuff from him including certain holidays unique to his home country. My mom once lived with him there before I was born so she’s okay with this stuff, too.
Anyway, my step sister gets really upset anytime I did something celebrate my dads culture and my mom would be supporting it. My step sister cried that it was unfair even though all I was doing was celebrating my dads culture with my mom on our own (like we would leave the house to do stuff). We don’t subject my step dad and step sister to anything because it’s just not their culture and that’s okay.

But my step sister was so mad because it wasn’t about me honoring my dads culture. In her eyes, she was mad that sometimes I was gifted things and she just wanted gifts too.

Well now she’s going around school claiming that my dad is actually her dad, our culture is hers, and she’s trying to convince people that I am not the ethnicity that I say I am because she’s claiming my dad is actually hers.

She has mental issues for sure, but I’m at point that I can’t even sympathize with her. I can’t even go to my mom because she’s usually more focused on keeping the peace now that she’s remarried. My step dad and I were okay with each other at first, but ever since me and his daughter keep fighting, he clearly no longer likes me and if I complain, he doesn’t even hesitate to get in my face to defend his kid.

I literally hate it here.

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anonymous Home February 18, 2026 at 1:21 pm 0 0