Fear of failure is often what holds us back from doing something. And fear isn't exclusively a bad thing. Fear exists to keep us in check, it keeps us from doing obviously illogical things (hopefully). But fear has this ability to grow beyond what it should be. You don't even have to feed it much to keep it alive, well and growing. Knowing when to listen to our fears and to ignore them is something we should continuously strive for. So should we be afraid of pursuing our dreams/goals/passions? Usually no. We should be more afraid of never realizing our dreams, never trying to attain our goals and never following our passion. Following your passion should be an absolute path to success, whether the passion is drawing, writing, making music, hiking, speaking, singing, creating, science, math, arts, teaching.... On and on. Relentlessly following your passion is always a good idea. And I say relentlessly because as you pursue your passions and goals, there will be roadblocks ...