Good creepypasta stories often have a sense of the unknown. They make you wonder what's really going on. For example, a story might start with a normal situation like a person moving into a new house, and then gradually introduce strange things like unexplained noises at night.
Another place could be YouTube. There are channels that read out loud creepypasta stories. Some of them are really good at creating the right atmosphere while narrating, which makes the stories even more engaging.
Not really. Creepypasta is mainly a form of creative horror writing. While they might draw elements from real life fears or urban legends, they are mostly made-up stories designed to scare and thrill readers.