Do what you can, when you can.  A willing person, is a mature person, that also understands the importance of responsibility.  When your actions are responsibly driven by the will to accept, embrace all opportunities to do what is possible, then things that you didn’t expect to happen, suddenly do.

There is always something you can do, life has purpose for every individual. We all exist to make the world we live in, a better place, but not everyone answers to their calling. So remember it starts with you, if you want something, then you must do more than complain.

I am only one,
But still I am one.
I cannot do everything,
But still I can do something;
And because I cannot do everything
I will not refuse to do the something that I can do.

Edward Everett Hale)