I don’t have any advice, just know that our daughter has been fussy since day 1 too!
We have a fussy eater too! I try the safe food and new food... he occasionally licks something new but everything is yuggy... I don't think it will last forever! My boy had issues with weight, allergies, breathing, so I understand where fussiness has come from! It's hard when you see others eating everything! My boy will go hungry rather than eat new food, and our dietician said the main thing is ensuring healthy weight. So if he refuses to eat what's for dinner that's his decision, but before bed then give toast, wheatabix or whatever is safe to fill them up. My boy would wait everytime!
I've a boob monster who would rather be stuck to me 24/7 and survive on thin air and BM. Defo know the feeling 😭😭😭
I have no idea if this will help but maybe take the emotion/eagerness out of it. Feed her some of what you know she will eat also with some bits you don't feel she will.....fruit/veg etc. If she doesn't eat it. No big deal! Also remember that you decide what is offered to her, she decides whether to eat it or not....there are times my little girl says she isn't going to eat whatever I've offered. I just say OK your not hungry and remove it. She will do this in order to get more snacks. I stand my ground and say this is all we are having for lunch today and eventually she will eat it. You just have to stay strong, easier said than done I know!