Recognize that change occurs because people model a preferable alternative. If you really feel there is any hope, pay attention to what fascinates you. This will energize and focus your efforts. The journey of a thousand miles begins with the first step, and continues, step by step by step by step. Mahatma Ghandi said you must do whatever you must do, and not worry about the fruit.
Violence is a low level frequency among the spectra of frequencies available to humans.
Weapons are crystallized fear. Recognize that cooperation defines humans, and that competition makes them stupid. Pick small achievable goals, and achieve them. We can take small slices off the beast, or we can celebrate small victories. Anything else is gunning the engine in neutral.