I have never read stories of any nation so boldly self-critical as those of ancient Israel. What a gift! The people were old, tired, and few, say the stories, and they sinned monstrously. By all the stars, they should have failed. What did they do to get through? The answers are here in Just these few dozen stories called Genesis, kept because they contain lessons from the beginning for how a community in crisis can come through.
I do not know how you should use your precious hours, but note this. You seek justice and you seek peace. Very often, it will be one or the other, not both: peace or justice. Very often, they do not come together in time. You must work this out for yourself.