I'm about the same age, and definitely feeling the years. However, I'm still trying to get my carcass into better shape. I'm also researching and documenting a lot of the "bad guys", and building up dossiers on them that I may release to the public under the right circumstances.
Get the word out to decent people that you trust that you're willing to do what you can (think of the old "underground railroad" - I'm sure many of those folks were older).
One alert 70-year-old might sit guard over 100 youthful patriots as they sleep, and those well-rested patriots may win tomorrow's battle.
You can do PLENTY, just be ready to do it!
"God made all men, and Samuel Colt made all men equal."
Lists of grievances against individuals is a good step. If and when, the most egregious are eliminated first. The shots will be heard around the world. Justice will come sooner or later. Of course we don't want it to get to that, but when the Department of Justice becomes unjust...it will be necessary to become uncivilized toward the uncivil. It won't be "vigilante" justice. It will be justice.