I truly believe that we need to let go of outcomes and focus on telling the truth as we know it. Now matter what issue you are working on, probability is most likely against you, but possibility, however minuscule is where activists must live and breathe for our own sanity. It's the Buddhist way though I am not a Buddhist per se, I do like the philosophy of detachment to the temporary.
We must be reminded that in the big picture there is always an end game and that no matter how successful we are, that too will be temporary. Our sun will one day become a red giant star and engulf our precious earth and once again turn us all into cosmic dust. So we do our best and enjoy the present trying to make life now better. As author and philosopher Eckart Tolle would say, all we have is the now, the past and future are illusions, but if we attend to the present, tomorrow will have more promise.