That's ok - you may not think anyone understands. It is true noone truly knows what it's like to be you.
As for the other women being jealous - many people have people that are jealous of them (for whatever reasons - looks, brains, wealth) finding true friends is like finding a diamond - rare and precious. When you find a true friend they will be happy for you. They will be proud to have a beautiful friend. But they will also know your inner beauty.
It's not worth even knowing people that a jealous (in a vindictive way) of you. So forget them. Focus on learning to love the inner you. Take your time. Get to know yourself, your inner self first - apart from your good looks what are your qualities, ambitions? - How do you really feel about people? What can you learn from another human being when you speak with them? Sorry I'm raving now
From a practical point of view - what have you done to help overcome the SP? Can you do something starting today to develop your conversations skills in person?
Don't try and fix it overnight - just gradually - you could start with getting to know the inner you a bit better.