live life like you're gonna hurl

How much farther in life would I have gotten, how much more would I have experienced, how much more interesting would I be if everyday I did one thing that made me feel like throwing up. The answer to that question, I don't know. I'm thinking about this because today I wanted to do something, but just the prospect of doing such a thing made my stomach lurch and my heart beat faster. I worked up the courage and did it. However, after I did so, it wasn't that big of a deal. I wish I was brave enough to do this everyday. What do you wish you would/could do, but you get sick just thinking about?