Isolation really is an American mentality but it's not particularly great for actually striking out. If you want to atop things from getting worse Collectivist activities and thinking is your best chance.
Reach out to the people who are already doing stuff. If you have a union or a political action group, go to it and start organizing. If someone has already started organizing then join them and be subordinate. Find people who understand democratic systems and collective action and offer your time. In fighting is the luxury of peacetime so learn to do that which is not your own exact process. Set aside differences and petty disagreement and work to mutual benefit.
Learn the Roberts rules of order or how your local and state governments function and utilize channels that exist. If you have a gardening or farmers market society reach out and looking at replacing your lawn for gardens and pool with like minded neighbours. Learn first aid and stock a kit. Train your body to be fit and learn self defense. Prepare yourself to be disobedient on someone else's behalf.
Your votes at a federal level are no longer being considered but will your protest be toothless? If you are feeling doom, reach out and find hope in solidarity.