How different would your personal life be if all of your siblings were born 5 years earlier?

I only have one sister born in 2007. If she was born in 2002 this is what would've happened:

-Just one year younger compared to her

-She would treat me differently during my early childhood years because she's the older and more mature one

-She would've started elementary school in 2006 instead of 2011

-She would've graduated high school in 2020 under strict COVID measures

-She would've started university under COVID measures aswell.

-She would've had a difficult time making friends during her time in university under covid measures.

-She would've graduated from university in 2024 instead of 2029

-I would've had a more easier time in terms of applying to university due to my older sister who went to university before me

-I would've been inspired by her life decisions and I would've made more careful choices regarding my post-secondary education