To Fight Crime or Not to Fight Crime...

So, I'm thinking about becoming a superhero.

Actually, it's less like "thinking about" and more like "seriously considering." I mean, let's face it; I have superpowers. Travelling around the world without having to endure jet lag or ticket prices is fun at first, but then, you really start to think about it. While I'm having fun, people are in danger somewhere. Either it's a mugging, or a kidnapping, or a natural disaster, or some supervillain holding half the Eastern seaboard hostage. I've always wanted to make the world a better place; now that I've got powers, I might actually be able to do that.

Then reality sinks in. I'm all of eighteen years old. I've never seen active combat once in my life. I have no idea how I'd react if someone pulled a gun on me. Most importantly of all, I don't exactly have any offensive powers, and I haven't been trained in any of the martial arts, so it's not as if I can just port behind some bad guy and apply the Vulcan neck pinch.

This is going to require some serious thinking. What do you guys say?