Don't ever believe you don't have enough time to begin something. You always have enough time to start. While you might not ever complete, (size and scope might matter here) what's significant is that you took the first step. Sometimes after that first step, we realize we're on a fool's errand. This is when you need to course correct, learn and progress on to the next thing. Failure isn't something to get down on yourself about. Find the good in the bad and move on. This is true for everything in life not just our ideas or dreams.