I know how you feel, I'm like that too and I'm worried about something on Thursday.
If you really don't want to go you don't have to, o.k? Don't punish yourself if you don't. But try and think that it will benefit you... you may even get there and have a brilliant time and really enjoy yourself with everyone? I know I've done that many-a-time: really don't want to go somewhere even though I did earlier and ended up having panic attacks, but then if I go and enjoy myself, I think afterwards... wow! all that panicking for nothing.

If you do go... you'll have made a very positive step and it will be an achievment and something to be proud of.
If you don't go... it's nothing to be ashamed of or dissapointed by, it's just another thing to work on and you WILL get there.

((((Katie))))
Take care,
Molly