In order to do that, you have to have what it takes mentally. Although, remember that you are responsible for your state of mind only. Once you have discovered the power of your positive thinking you will not be able to understand why others are so hard on themselves and negative. You will want to try and make everyone feel the way you do. Focus on yourself first.
Confidence is very contagious.
You will influence others without even trying. It was a primary goal of mine to be able to do one, just one on my own. I had only been properly training my back for a short period of time and figured that it would be a year before I would see my vision as a reality. I told myself it would be a year. For months I was doing bent over rows, chins and assisted wide grip pull-ups religiously.