Anxiety in a 10 year old

My daughter is lovely and kind and wonderful, but shows signs of anxiety that I'd like to address now, rather than let them develop in to something more serious.Today we were at a cafe, and she asked if she could have an ice cream. We said yes, if you go and buy it yourself with your 7 year old brother. They went to wait in line, but she became extremely worried about her brother not doing it properly (perhaps he wasn't lining up right, I'm not sure), and she came back in tears after arguing with him. As a 10 year old, she rarely cries these days. I got the sense that it was much more about not wanting to interact with the shopkeeper than anything else.She also worried a lot about being in charge of buying a sausage at a sausage sizzle on her own when I had to rush back to the car last weekend.I guess my thinking has been that "exposure therapy" can be helpful - little bits of doing something scary so that she realises it's not that bad and really it's going to be fine. But it's not helping so far, she is as anxious or worse.So I think social anxiety around interacting with strangers is a thing for her. This is despite me encouraging her to do things like give money to buskers, say hi to our neighbours and that sort of thing. I have not given her any indications that strangers are dangerous, but I feel she is very nervous around them.Also on a recent school excursion to an historical site, she fainted when there was a model of a corpse. Obviously this could be a bit creepy for a lot of kids, but fainting is quite a full-on reaction. She has always been extremely worried about scary TV shows or movies, but it's always been fairly easy to avoid them, which she does.What should I do? I have some anxieties as an adult - I have phobias, and terrible physical reactions to public speaking, so it's likely she has some anxiety genes. I can be neurotic and ruminate about some things. At the same time I have lots of friends and would not consider myself a terrible worrier or generally anxious person. I feel like I am already doing what most of the advice would be - I am gently exposing her to her worries in safe ways, showing her a positive role model, talking about how scary things can be really fun once you get over the fear (but not all the time, just occaisionally), and just being generally encouraging.She's a great person who does well in school and has lots of things she should be proud of, but the worry seems to be seeping in to her brain and I'm not sure how to get rid of it. via /r/Parenting http://ift.tt/2oTjaJM