Joie de Vivre? My life as a spectator

I look at the people of my generation, and I envy them for all they've accomplished. They've created; they've traveled; they've seen and experienced exponentially more than I have.

Why?

I am a spectator. I sit on the side and watch as everyone experiences their lives. I listen to their stories, with none of my own to contribute. I watch them as they do great things, while they become notable members of society. I sit in awe as they experience every emotion possible; every emotion I've suppressed in myself. Every day of their lives seems to be an adventure; everyday is literally something new.

My life, on the other hand, is monotonous.

I don't go out. I don't experience or create. I don't even let myself feel. Because I am too damn scared. I afraid of my potential (or lack thereof). I'm afraid of failure, so I don't even try. I'm afraid of people, so I don't cultivate substantial relationships. I'm afraid of the world outside, the world I don't know anything about, so I don't allow myself to wander too far.

I'm restless, but my fear strongly forces me back. I'm too afraid to live, so I let other people do it for me.