I find it important not to let frustration get me down . . . well, it does get me down, though I hope not permanently. Here's hope for the effectiveness of change tactics which refuse violent means:
Erica Chenoweth is one the leading scholars on authoritarian regimes and how to overthrow them. In her book Why Civil Resistance Works, she compiled 323 cases of nonviolent and violent campaigns in order to assess which were more successful in achieving their stated goals of regime change. Much to her surprise, Chenoweth discovered that nonviolent campaigns were nearly twice as effective as armed campaigns over the past century.
Read the whole article: How to Topple a Dictator