AITAH because I want to watch a show without waiting for anyone else?

Just wondering if I would be the AH if I start watching a show I’ve been waiting for it to premiere all year, and it finally has but my sister and mother like to watch it all together. Today, I got home and was waiting to see it but my sister said we can all watch it tomorrow since she’s going to bed because it’s late and my mom too…

I really want to see it using another account on the streaming service and then just pretend to see it and be surprised by it tomorrow… or should I just be patient and wait until tomorrow to see it with everyone else?