It's not terribly unusual for student pilots to quit right after solo. Not because it's particularly terrifying, but because they've proven they can do it and that milestone is what was important to them.
Then there was some major stress in my personal life, and after that I lost a bit of nerve. Was working back up to solo flight again and then had to hang it up for a while. Hoping to get back to it one day. There's something about it that's different than any other thing in life.