Life would be much MUCH more different, to the point where I can't even fathom a lifestyle without my SA. I can't really say it's done me any good in life, but I honestly think that I wouldn't be the stronger and more observant person I am today if I didn't have this condition.
Before my SA developed, I was very social, didn't care about what anyone thought, but at the same time I confided in people too much back then and I always got hurt as a result, which eventually led to my actual SA. Since then, I've learned that most people cannot be trusted and that I'm better off with the very few friends I have rather than a bunch of random people who could be stabbing me in the back without my knowing.