Accept that all of us can be hurt that all of us can and surely will at times fail. Other vulnerabilities like being embarrassed or risking love can be terrifying too. I think we should follow a simple rule: if we can take the worst take the risk.
Americans in particular are myopic. They're not traveling as much. When you were a college student the next thing you would do on graduation was to take a year off and travel. That's what I did. I went to Indonesia.