Posting memes and comments on Facebook to your friends is not how you achieve change.
You have to actually get up and do something.
Write, call, and email your representatives. Contribute to groups that support your view so they can lobby for you. Join a political party and go to their meetings to see how to help. Work on a campaign.
And most importantly: Vote.
Having good intentions, praying for survivors, and hoping for things to change does nothing to achieve that change.