Get to know your neighbors, they’re first step in your local community. It doesn’t matter to me which side of the political divide my neighbors are, I connect with and do my best to help no matter who they are. If they’re a neighbor and I see them doing a project I offer my support whether it’s labor, tools or just moral support. I also ask for support when I need it, whether it’s a dire need or one of convenience. Helping, borrowing, sharing are all muscles in your community and using them so they are strengthened is key. I’m 15 years older than you OP and I’m still building and exercising my community as often as able, I live alone except for my dog and other critters and I am not alone in any of this. Another way that I’ve built and kept my community muscle is through training in martial arts, which I’ve been doing almost all my adult life. Again I don’t care who they voted for, our relationship is built on practical sharing, mutual respect and collaboration. I’ve built a 50 yard home gun range out my back door. I make sure I use it as often as able and invite friends, neighbors and community to join me, often teaching firearm basics to people for their first time. I talk about contingencies and make plans and assurances, extending an invitation of support when needed. Most folk in the US are not born in community, you need to build and keep it alive, in condition and capable.