Solipsism

Solipsism is a type of thinking that says that you can’t be sure if anything or anyone other than you exists. It means that you think that you might be the only real thing or person and everyone or everything else might just be something that you made up in your imagination. Some people think that solipsism is a good way to look at the world, because it reminds you to think about yourself and to trust your own thoughts and feelings. But, for most people, it's a tricky and confusing way of thinking.