We are responsible for what we are, and whatever we wish ourselves to be, we have the power to make ourselves. If what we are now has been the result of our own past actions, it certainly follows that whatever we wish to be in the future can be produced by our present actions; so we have to know how to act.
I'm a teenager, but I'm independent - I have my own apartment, I have my own life. And I think I have learned more than any of those teenagers have in school. I learned to be responsible, leaving my family and coming here alone.
If we would only testify to the truth as we see it, it would turn out that there are hundreds, thousands, even millions of other people just as we are, who see the truth as we do...and are only waiting, again as we are, for someone to proclaim it. The Kingdom of God is within you.
Each of us in our own way can try to spread compassion into people's hearts. Western civilizations these days place great importance on filling the human brain with knowledge, but no one seems to care about filling the human heart with compassion. This is what the real role of religion is.
If you have done the best you can do and if you have gotten all you could extract from something, you have given all you had to give, then the time has come when you can do no more than say thank you and move on.