in the regard of worrying about the world...and what we are doing to it.

I am afraid that you are allowing yourself too much responsibility...and borrowing trouble that at our age we can no longer afford to shoulder. You, and I have absolutely no control.
All we can do is make a difference in our little world of existence. This has to be. We are the power of but *one*
Que sera sera....

If you look at it from that viewpoint, it is self-forgiving. Knowing our limitations is what growing older and wiser is all about. Pass the torch, RNE...allow yourself the luxury of living in the moment. Our time is passing quickly now...dreams are fading...replaced with simpler connotations of what we want or need. We will return to the earth...all that will remain is what we have left behind...you must decide for yourself what that will be. For me, it is and always will be the power of intention and how that was manifested....I am struggling with this self-proclaimed legacy as I write this.