There's nothing wrong with coasting when you know you're moving in a good direction, which it seems clear you are. In your situation, you have the chance to sit back, observe, and carefully consider the environment (in addition to consulting whatever oracles you consider the most wise) and then decide when or whether you should strike out with any given idea.
Unless you're throwing yourself on the mercy of an incubator on the strength of your resume, which in my opinion is a laughable gamble for kids who don't know better, you will want to think long and hard on what you want to do and how you want to do it. Once you can answer those questions for yourself (as you are the only one to whom you answer, and you'll never find a more forgiving situation), you'll have your direction.
Once you take it... well, that's another story. ;)
