Idealist a.k.a. Optimist. Dreams are meant to be followed. Look at Steve Jobs' life. He never took "no" for an answer. Instead listening to critics, he decided to create products that people didn't even know they needed (wanted). What are your lofty goals? Are you going towards or away from your target? Idealists don't settle. They work hard for what they want. Sure, the percentages are against you, but isn't that the fuel that becomes added motivation? Idealists know hard work beats talent, when talent doesn't work hard.
So which one are you? It's more of a decision between "wants" vs. "needs" when it comes to your career. A serial entrepreneur is a perfect example of both. He/she dreams big, but is very systematic when it comes to making financial decisions. There's no wrong or right way, just two sides to look at. Think of your career as a spectrum...where do you fall?