You're not old. But it's easy to waste your youth sunk in the fear of getting old.
Also, it doesn't matter whether you hit it big or not. Big is something other people will call you, or not. After you have wasted your youth, and you can feel the years in you, you will feel their indifference toward other peoples' judgment. All you have are a stream of seconds that are filled with your own thoughts. That doesn't change no matter how famous you get.
You should focus on the things that enliven you, not the projects of great promise that will make you famous if someone notices. In the end, that feeling of being alive will be all you had.
Also, it doesn't matter whether you hit it big or not. Big is something other people will call you, or not. After you have wasted your youth, and you can feel the years in you, you will feel their indifference toward other peoples' judgment. All you have are a stream of seconds that are filled with your own thoughts. That doesn't change no matter how famous you get.
You should focus on the things that enliven you, not the projects of great promise that will make you famous if someone notices. In the end, that feeling of being alive will be all you had.