Think big and you'll do big. Though be patient, with your ambition(s) as the great tree(s) grows very slowly, in order to attain such great height(s). And be humble before G-d, and man, and know, with absolute certainty, that His plan for you, is far greater, than are your worthy ambitions. In fact far more than anything you have ever or as yet can even imagine, and do NOT doubt this, NOT for even a picosecond. As this is the reason, I've advised you, and herein repeat that advice AGAIN, to be humble before your G-d and to know that you're much taller, in His perception, than you know, as he can see what you cannot see, as He sees the end when we merely see the beginning(s), as you've yet to grow.