advice please

My older sister is just so annoying. She hangs out with this girl who is a few months younger than me and she takes her everywhere and they are the best of friends but with me? Nooo with me she doesnt even ask me if i want to go with her or anything im just like a roommate or something and sometimes i feel like she doesnt love me or she isnt my sister or something and idk guys, just comment whatever. Thanks for reading