I believe that everything you do, affects the future, and one single action can change the world. In my fifteen years of life, I have had many things happen to me that was negative at the time. I have now come to realize that without these events, you cannot develop as a person. Your personality is shaped and twisted by every action you take.
In my own life I have seen how my actions shape my personality. If I had never hung out with some of my closest friends then they would never have had the chance to tell me when I'm wrong about issues and things like that. I am a stubborn person but when people around me are sure that they're right then I can change my ideas. My personality would also be much different if I didn't take the action of going to church every week. Church has changed me a lot and affects my everyday life. Without these key actions id never have become who I am.
Actions that you take shape the future of yourself and those around you. I have experienced this in my own life. By taking the action of choosing to study for a test, or to go hang out with friends and meet new people, I have had the chance to change myself, and the people I interact with. You are given the chance to change the people around yourself often, and anytime you see some positive in the future you should take that chance.
I believe that my life has been changed extremely by the ones around me too. By not meeting new people, you shut yourself off to the world around you. If I had never gone to hang out with my friends I would never have meet my girlfriend, who means a lot to me. Without having done bad things too, by making bad decisions I would never have been able to grow, and shape myself into who I am today.
So long as you keep expanding and growing to meet new people and try new things, you wont be able to grow as a person, and you will slowly rot away, without have known whom you really are. My belief is that without growing you will never develop into who you are destined to be.