If I spend more time around people, my SA tends to get better, but then when I'm alone again I revert back, the change is always short-term.
Well, why do you care if you have SA when you're alone? The point is to be ok in social situations. I think a little reversion is normal.
I think it depends on what kind of exposure you do. I don't think that it would be effective to focus on your fears, and then expose yourself to them....
(Your fears being people... and then exposing.... never mind.)
Anyway, I think that instead of trying to expose yourself to your fears, you should focus on accomplishing your goals. Obviously, you're trying to do this for a reason. So what's that reason? And how can you accomplish it? it's important to set small, quantifiable, but still valuable goals.
I also agree with whoever said that life is exposure therapy. But I'd like to add that not everything is ex. therapy for this disorder. For example, handling a spider might be exposure therapy for your arachnophobia, but not necessarily for your social anxiety. (Unless you're a spider.)
