Hey OP,
Firstly, this is so tough for you. We are programmed to nurture and feed our kids and when they won't let us it is a horrible feeling.
I was very like your daughter as a child and my son is the same. I would eat raw vegetables but the smell and texture of them cooked was unbearable. Dry, crunchy food was fine but sauces, cooked veggies, the texture of fish was all unbearable for me.
I can't tell you how much I wanted to be like everyone else, to just fit in, to get the praise for finishing my food everybody else did.
Try to remember that the only thing which matters is your DD getting the nutrition her body needs.
Make a list of everything she likes. Focus on the healthy things she likes. DS won't eat any vegetables at all but will eat olives, apples, pears and bananas. But pears and bananas have to be rock hard, not ripe
Our meals are much more picnic-style. There is always a plate of sliced fruit on the table. I never make him try things or withold treats from him. I put other things out but never ask him to try them. He will do it on his own time. My approach sometimes clashes when we are with friends who believe children should eat everything, but I hold my ground and back him up.
If there are foods you really don't want her to eat, try not having them in the house for a while.
Take the pressure off her by taking it off yourself. Speak to your GP to ensure her nutritional needs are being met and try not to worry about what other people think.
DS is now 11 and it breaks my heart when he turns down invitations because he is worried he won't be able to eat what they make.
She isn't doing this to hurt you and as she gets older and more self-aware she is likely to be self-concious about her eating issues. Adding in the feeling that she is disappointing her parents every time she has a meal makes it worse. Trust me, I have been both the child and the adult in that scenario.
Good luck