Why responsibility and how?

Responsibility is such a big thing,  a positive step forward in your life. Being given the opportunity to be responsible for something can mean so much to some people, especially someone who doesn't step forward and put themself out there.
People respond to responsibility in different ways; some shy away trying to avoid it while others jump at the opportunity to be seen and heard.
Personally,  I don't mind responsibility its a good thing. However,  I don't jump at the chance to be seen or recognized. I take it because it gives me a chance to express myself,  share what I have with others and try to help.
We're willing to take on almost any responsibility given to us. But when we prepare ourselves and become physically and mentally ready to undertake this responsibility, and then its just taken away,  we tend to find ourselves withdrawing from wanting to try again.
Its like we're in a shell and as soon as we muster up the courage to take that step out, someone passes by and knocks us over and we have to struggle to find our way out again.