This would be a good time for me to repeat some advice I have on occasion given to young people about how to be political. Changing anything as large as America takes the efforts of millions, perhaps tens of millions, of people over long periods of time. Now, sustaining political action, like sustaining anything, is difficult. The secret is to find some way of being political that you actually enjoy. That way, you will keep at it when the spotlight moves elsewhere, when the passion dims [as all passions do, from time to time], and when there are no immediate results to serve as positive reinforcement.
Some people like participating in demonstrations, others hate it. Some like standing on street corners leafleting, others find it embarrassing. Some have the funds to make continued donations to organizations doing good work, others do not. All of these activities, and many more, are needed.
Remember, social change is not like brain surgery -- the exquisite and precise performance of carefully chosen acts. Social change is like a landslide. You may not be a boulder -- that is Bernie Sanders -- or an enormous uprooted tree -- that is Elizabeth Warren. You may, like most of us, be a pebble or even a twig. What matters is that you are slip sliding down the right side of the mountain.