can

Do you remember when you were a kid, and anything seemed possible? When you would imagine climbing Mt. Everest or sailing across the Pacific Ocean, and just like that you were there in the blink of an eye. The only foreign thing we couldn't view through our telescopes was reality. The beautiful thing about that time was that we all believed. We had everything we could ever want right there in the backyard. We were blessed with ignorance, blanketed in the idea that we could do anything and be anyone.
What happened? When exactly did reality take over our worlds? When did people start telling us "you can't", "that's impossible"? A huge difference between yourself and your childhood self is that back then, you had no limits. I'm not saying we should all live in an idealistic fantasy world and look for buried treasure, I'm just wondering what would we be if we all truly believed anything is possible.
He told me "aim higher". His face almost had a tint of anger to it. I stared at my shoes. He said the only one holding me back is myself. He told me to believe. And with all my heart I wish I could. I wish I could go back to fantasy world and believe in myself 100% like I did when I was a child. No limits, no hesitations. But it's this so called "reality" that keeps me from believing. It's fearing I'll fall short of expectations. It's knowing how hard it is. But then I think, would that have stopped me then? Would that have convinced me that it's impossible? No, I didn't know the meaning of impossible back then. I used to run in the Olympics after swimming all the way to Africa back then, and win! I can do this. It's just a matter of re-eliminating the "impossible".