If you can't be what you want then at least be closer to what you want because being closer to what you want will give you what you want. You will be closer to opportunities, you will see openings, you will find a way. It is easy to find a way if you are closer and not far.
Sometimes for whatever unknown reason, no matter how hard you try and how hard you work... you still can't be what you wanted to be. I guess the life itself is the only thing that knows the reason.
If you wanted to become a professional athlete, what will you do to become one? of course you need to be one step away from where the training is going on. You need to be closer to professional athletes, coaches. You need to know what they are doing and emulate some of it.
If you wanted to become a professional basketball but there is no vacant slot for you. Why not try being a practice player first or a reserve or maybe even a ball boy? Develop your skills everyday, make yourself ready and when the universe sees that you really paid your dues then it will make an opening for you. You will be given an opportunity and you must embrace it. Devour the chance, treat it like it's your only chance, make sure you've given everything you've got.
If you are an aspiring businessman and you want to become a business tycoon or something. All you have to do is try one business at a time, attend seminars about business. Have as many experience as you can. You don't need a business degree in business, all you need is hardwork and focus, be very close to any kind of business you want. Learn something about it, try something about it. That is all you need to do, the rest will take care of itself.
If you have a crush in your class, what do you think you need to do? of course be closer to her. Find a way how to make your seats very close to each other, exchange seats with your classmate if needed. Talk to her, be nice to her, treat her like a garden and you are the gardener. Do something to connect with her emotionally and spiritually, find things that will make her feel some emotions that she hasn't feel yet. Stop being a pussy who is so afraid to get rejected. Remember "What could have been" is the language of losers. Are you a loser or not?
Being close to what you want is the only way to get it. You can't be getting what you want if you are very far from it. You can't be a writer if you are reading books everyday. Go ahead and do it, time is running out. Be close to what you want or it will close its door to you.