Let's say, hypothetically, that you know what you want in life. You have a goal - your deepest desire to realize before you die - at least for the time being, until you achieve it; after all, you can always pick a new goal after you reach the one you're fantasizing about at the present time. You want it more than anything. But there's a problem: the goal is either so vague or so grandiose that you don't know how to go about reaching it. (Then there's also the issue of fearing the moment when you're reached your goals and have nothing to struggle for anymore. But that's another story.) Not knowing what to do to reach your goal can paralyze you to the point that you don't do absolutely anything, and instead sit tight in your comfortable yet always lacking life and wait for the desire to pass.
But guess what? It doesn't matter if you're not taking the right steps all the way to your dream. It matters that you take some steps.
Because let's face it. It would be completely unrealistic to
- Know what you want from life from age 6, and
- Ensure that literally everything you do after that would be a step closer towards that goal.
So stop worrying, and take a step, any step, that gets you moving. There's a fundamental difference between a static object and a moving object - only one of them is moving in some course, gaining momentum, and able to adjust the course as it moves. The step you take doesn't even have to have anything to do with your end goal when you observe it with a naked eye. But under the surface, you moving in a direction that contributes to the process of working for your dream. You'll see the connection in the end.
Take a step, see where it takes you, and adjust your course as needed. You'll never figure out a practical itinerary if you don't start the engine.