Anxiety and those who doesn't understand

I have anxiety and load of it. To the point where I can't go out anywhere without someone accompanying me. I am getting a servicedog in 8-9 month, so I'm just waiting to get my life back.

And I have this friend. Or well not friend, but we are in the same role playing group. And she just doesn't understand. She keeps saying hurtful things, and I just wanna you know... hurt her back?

Mostly when I talk about my anxiety (which I don't do often), she ends up commenting on it. It's like... I talk about how I'm waiting for my new servicedog, so I can go outside alone again. And she just says things like "Can't you just go outside?", "Can't you just practice going outside", and I get like really mad?

It feels like she is trying to... I don't know exactly what, but I feel like she is downplaying my anxiety, like she doesn't believe that it can get that bad. And I kinda get some of where she is coming from, bc not everybody knows about anxiety. But I have tried to explain it to her, and she keeps giving me comments like the ones above. Like I can just pull myself together, and then my anxiety will be gone.

I can feel that it makes me very depressed, and I am thinking about taking a break from the group or quitting it completely. I'm so tired of ppl not respecting that I have issues and downplaying them - or even making fun of them. What can I do?

I don't know. I'm just really angry right now (and sad) :S