Is the Great the Enemy of the Good?

It's not very good arithmetic to assume that if one man can dig a post-host in sixty seconds, sixty men could dig one post-hole in one second, as Ambrose Bierce—who also knew logistics—points out.

So it follows that even if there were a most important cause, almost everybody would have to work on some other one, unless they wanted to screw up the most important cause beyond recognition.

Yours is not, therefore, a major worry, so far as I can see. The important things to do are to figure out exactly what you want to accomplish, and exactly how to accomplish it. If you have done that once, you either have the cause, or a cause that will be important to your life. You will soon see that most troubles occur in "civil society" because people cannot grant rough equality of importance to one another's causes, and are unable to let go of the arithmetically ridiculous opinion that everyone should really be working on their own. Another draft of this essay, that let go of the self-doubt and embraced instead the uncertainty would be very good for the author to have written.