My sister made my birthday all about her

I wanted to have a family dinner for my birthday. With my parents, my sister and my two cousins that used to live with me they’re basically my sisters. I turned 25. My sister is 18. She invited her boyfriend. Cool. Then she told me her best friend is back from school in the states and asked if she can come. I said sure! I didn’t mind at all. Then before leaving that night she let me know her boyfriend’s brother was coming too. I was like oh okay that’s fine I guess. Then we all show up to dinner. My two cousins drove themselves and I came with my parents. My sister took an uber. and she show up and she has her bf, his brother and her 3 friends with her. None of which were her bestie who came home from the states that I gave her the okay to invite. I asked where she was and she was like oh she couldn’t make it. So there was a bunch of just after high school aged kids ranging from 17-19. Two of them were tipsy and had alcohol in water bottles with them (the 19 year olds. 19 is legal age here) I have a lot of anxiety in large groups and after dinner I just wanted to go home. It was a good time But I was a little annoyed with my sister but I brushed it off. So after dinner we all walked back to the parking lot together since my sister and her friends were getting a ride with me and my parents. It’s downtown Toronto so the parking lot was a far walk. On the way my sister and her friends saw an ice cream store and had to stop there then spent 20 mins taking dumb pics. Then we kept walking and my sister kept getting my mom to take photos of her. I don’t blame her downtown Toronto is cool at night but then it just turned in to a photoshoot for my sister and her drunk friends and I felt bad cause everyone was having a good time but I just felt left out and I just wanted to go home. I spoke up a few time and kept saying can we go? I wanna be up early tomorrow and they kept saying yeah after these pictures. Then my sister was all like omg can we go to that one street with all the graffiti!! Let’s get those giant lolly pops from that one candy store and we can take pics in graffiti alley! And everyone thought it was a good idea so we followed her. After that was all over she went on about “let’s go get a tea at tim hortons! Mom can we got to Tim Hortons??” And we went to Tim Hortons.

Then she wanted to go to this one specific store in the mall so we went there. Then she wanted to go see her friends new puppy at her apartment cause she lives “just down the street” it was a 20 min walk. Every time she said let’s do this everyone would even if I spoke up and was like hey actually can we do this instead? Or I wanna go to this place but nooo.

It just became her special day and it was all about her. No one even really talked to me tbh. Her and her drunk friends were just causing such a scene that I was just un noticed. Eventually me and my dad went for a walk while all of them were taking photos and stuff and I was able to vent to him. And eventually we went home. After she got everything she wanted that is. Anyway would you be annoyed in this situation too? Or am I being a baby? I did talk to my mom about and she kinda excused my sisters behaviour like “she’s in her own world/ she probably didn’t notice/ she wasn’t doing that on purpose) uggg sorry to vent I was just annoyed