On the other hand, people in their 20s often pick up and go somewhere they know nobody, where the culture is very different and they have to pick up a whole new set of assumptions. It's called "college".
I think people in general are far more resilient than you give credit for, especially with the benefit of what would likely be advanced counselling methods.
Perhaps it's not to your liking, that's fine. Some people are more embedded in their world than others. I think I would manage fine, a whole new world to learn would be fascinating! Besides, you could likely still make the decision at that time that you didn't want to continue, no need to make it *now*!