How do I stoo being envious?

For quick context; I have this friend who i love very much, she's really amazing in every possible way. She's attractive, smart, charismatic, funny, talented, skinny, has a girlfriend, lots of people like her, very kind, understanding and sweet. In my eyes, she's perfect.

And I can't help but feel envious of her, so much that I've cried because I feel so bad feeling like this. She's a sweetheart so I know if she discovers how I feel she would feel awful.

I've always felt that she's everything I want to be, and when she likes something that I like I feel like a competition because I feel like I don't have an identity on my own without being the shadow of her perfect figure, you know???

I hate feeling like this, I'm trying to work on my self and trying to find anything good about me but its difficult, any suggestions on how to overcome this???