I don't think it's about trying *hard enough.* I mean, what's enough? How do we measure that?
Okay. How do we measure that objectively?
Really, I think it's just about trying. Period. Either something will grab you, or it won't. Either your effort is authentic, or it's not. Only you know the truth of that effort and no one can (although they'll try to) judge you for it.
I think we both overestimate and underestimate what can be accomplished in one, small human lifetime. We can cause great damage so easily, that's the nature of the beast. Rebuilding takes time. One life's worth may not be enough.
But, oh, it's more than enough to try. To make an effort. To make an authentic effort. To have faith that, down the line, someone will be grateful for the work we started--the path, once invisible, now, at least, partially accessible.