I would learn to drive
I would talk to people who interest me, even if they intimidate me
I would swim out of my depth in the ocean (somewhere along the way, I became terrified of sharks)
I would draw and paint and sculpt and write and not worry about where it was heading
I'm sure there are more - I'm still thinking about it. While I am too fearful and it does hinder me, I also think a touch of fear might not be such a bad thing sometimes. It might make us a bit more cautious - allowing us to figure things out before we leap - and act as a means of self-preservation. But, yes, I do wish I could be braver.