How do I deal with not being anyone's favorite person/being the last choice?

How do I deal with not being anyones favorite person/being the last choice?

I feel like I'm the last choice. Today my uncle and cousins visited, and my uncle said hi to everyone, gave my sister a big hug and then said hello to me at last. (When he had said hi to all my 9 family members, I was last) And last time he visited he said he didn't even notice I was here even though I was in the same room as him with all the others. And my cousins won't even say hi, they come to my siblings and scream and shout out of happiness, and when I say hi they don't respond. And my uncle is talking to my sister right now even though she's a pretty quiet person.

My siblings don't hate me but they don't favour me either. I'm the eldest out of 7 children, and I'm the least favorite to my siblings. My younger siblings don't like me but don't hate me. But my sister who is a year younger than me they absolutely love.

I just feel like I'm the last choice all the time or that I'm invisible. My parents are great but everyone else seems to pretend I'm not there.

My grandpa likes my sister a lot as well. Compliments her, talks to her and me, I'm invisible.

I'm invisible to everyone, strangers, siblings, uncle's and aunts, cousins, grandparents, etc. I feel so alone although I have a big family.

How do I deal with not being anyone's favorite person/being the last choice?
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