I feel a lot of anger/resentment/hate/jealous toward my sister.

I really hate and feel jealous towards my sister. She's always had a better life than I did she has had more friends than I had, is smarter than I am (I'm a year older than her). She is liked by everyone. No one really pays attention to me. I hate her. She's always been everyones favorite. I feel like blocking her on social media and never speak to her again