If it acts as any sort of consolation to you, everyone has some or the other fear in their lives.
In most people, this fear culminates into a phobia, an extreme paranoia about something.
And, in most cases, such fears and phobias are unjustified. Whatever it is that you are afraid of, it is highly likely that that particular thing does not deserve the fear.
Fear is a highly subjective thing. You may be fearful of something to a very extreme degree, but there will always be several other people who do not have any fear of that thing.
Keep this thing in mind; it will help you a lot. You can seek inspiration from the many people around you and you will get some motivation, or at least some courage that such a thing is possible.