What do I do if I feel like a failure compared to my sister?

I absolutely hate being jealous of my siblings, it feels so wrong. But every time I look at my older sister I feel like a failure and I feel so insecure and I want to stop feeling this way.
My sister is the type who has a lot of friends following her, She's skinny short and has self confidence and is very smart, my parents adore her. Me, I have broad shoulders I'm tall and not that skinny.

To make it worse my parents keep comparing me to her and it makes me feel worse. I love my sister so much but how do I stop feeling this way.
What do I do if I feel like a failure compared to my sister?
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