Fear is a natural thing, historically it was to keep us safe. If you wish to overcome fears you could look into a crystal, make a courage amulet, or have a chant to calm you down. Try researching ways to overcome fears and try to create me to terms with and release these fears. Just remember some are more rational than others. [Fear of guns is a healthy fear, but being afraid you could be shot at any moment is not] so don't expect to have zero fear, but you can work to overcome fears one by one.