While I don't have (or don't think I have
) social anxiety, it does take a lot of effort for me to go out to busy places. It's not that I'm scared of people, or at least that's not the main reason anymore. It's because I get an overload of stimulation. So many people, movements, noises, lights, smells, etc. It's also really hard to focus on talking to just one person most of the time.
So what have I done to learn to deal with this? Maybe it might help you. I don't know, but maybe.
First off, of course, going to these places needs to happen or else one cannot confront the problems, so I find it very amazing of you that you want to get help with this.
You mentioned you went with your brother to anime conventions, probably indeed as a safety precaution. It helps you be a bit more relaxt, no?
Ehh, second thing... I'll try to summarise these pointers and maybe elaborate on them afterwards.
-Remind yourself you're not the only one there who has this issue. Probably most people there are extremely anxious, all in various degrees of it too.
-It's a challenge you want to face and pass. Just being there should show you how brave you are. Even if things go bad (be it a lot or just a little bit) just remember you're actually there. You have conquered one of your largest fears -if not the largest- simply by being there.
-When you start to notice even the tiniest of hints you have that it's being overwhelming (mentally, physically, etc.) find a calm place. Even busy cons have calm places. Maybe go outside, or if you have a room go into you room. Take a couple of minutes, or an hour. However long you need to relax.
-Plan your day what you want to do. Think of events, panels, workshops. Get a conbook on time and check it out ,mark what you absolutely want to see. When you plan things, you have some control over your own life a bit, and might help you focus on that rather than being anxious.
-If you want to talk to/with people, don't stress about what to say. Talk about what's going on at the convention, talk about the events, etc. There are many subjects you can address at a convention. If it's a furry con, talk about what their fursona is, how they got into the fandom. These might be a bit 'standard' questions, but it usually gets a conversation started. And if it doesn't work out? Politely excuse yourself, say you want to attend a panel (if there happens to be one soon) or you need some air, maybe say something like "Was fun talking to you, hope to see you around!". Often such small gestures don't take much time and show people you're a kind person and maybe even someone they'd like to talk to again. (Thus also hopefully also helping your anxiety in some way.)
And since you'd be going with someone else (Nori
), I assume they would be fine if you two hung out with each other too. If you need help, I would suggest talking with whoever is closest to you.
Hope this helps!