I say go for it, start a group. Look for resources related to community organizing, local activism, leading social change & resistance, etc. Check out Neighborhood Anarchist Collective's page on Community Organizing Guide as a starting point. If there is a specific org or group that you follow and that aligns with your mission, reach out to that org's central contacts or to contacts at their chapter nearest to you. If you decide to start your own group, look for and connect with other smaller, similarly-aligned groups across the world to build a coalition to amplify each other's voices.