If you want to stick it to the fascists, help houseless people. Help immigrants. Help abortion seekers.
If you want to confront the powerful, you need a coalition. To build a coalition, you need to demonstrate that having you as an ally is more of an asset than a liability. This means doing your best while learning how to do better.
We are in a time of monsters. The challenges will not cease, nor will the opportunities. There's a crack in everything. That's how the light gets in.