Sharing Our Innermost Thoughts

my grandma told me these exact words “The neighbors asked which one of my grandchildren was my favorite and I said (my older sister’s name) bc she’s the first born after all” it made me sad for obvious reasons and one additional reason on not being someone’s favorite in my dad’s side of family I’m usually the favorite one and ik my mother’s side loves my sister more so I’m jealous like I already knew it but hearing it directly made me even more jealous and just now my mother said “the only one who puts me first in their life is your sister” so I said what about me? and she said "well you don’t really help me with chores and all when I ask you to it might chance after you go to university and you’ll probably realize how hard it is to do everything by yourself " which is true but I honestly think she’s my number 1 and it made me think like maybe my moms favorite is my sister and I’m so jealous I love my mom the most out of everyone (except myself lol) idk if she actually means it in “I love your sister more” or “I think you don’t put me first” or maybe both

basically should I cry bc I might not be my moms favorite or its not about that?