You have to TRUELY understand that you are unique and unlike anyone else. You have to understand that there is no one person like you,God(not trying bring religion into this) made us all special. You must also understand that ANYTHING CAN HAPPEN AT ANY TIME,so never doubt anything,especially with yourself. When you understand that anything is possible then the windows of oppurtunity are endless for you. Try not to think negative,everything is good some thing are just better then others. "There is no such idea as failure,only lessons learned". If you ever doubt yourself think about how much you have accomplished in your life and think of where you want to go,doubtting yourself isnt going to help you get there. Then you will start to see what really matters in life,Family,your offspring to continue with your legacy.