Have you ever thought about what scares you? I can think of a few things that make me a little nervous..spiders, for example. However, I see a spider and I just step on it. Easy. Some people cannot just "step on" their fears. There is such a thing as a phobia. People with phobias feel an intense fear of an object or situation that's greatly out of proportion to an actual threat.
Imagine having a social phobia. Being in the Psychology discussion classroom would cause such a panic that you wouldn't be physically able to attend class. My little fear of spiders seems quite basic compared to a fear as great as a phobia. Now I'd like to know...What truly scares you?