If you want the change that Dems will bring then you must achieve at three levels. Level one - Your vote of course. Register to vote by mail and then actually vote.
Level two - Letters to newspapers and comments online, phone banking, and precinct walking. This is one person (you) taking real world action that can affect other voters.
Level three - perhaps the most important of all because this has the multiplier effect. Invite others to also achieve at these three levels as well. Ask one new person to help each day. Then you have not only cast your one vote and taken your action but have brought others along, each of whom will reach out and bring along still more.
Level three is how waves are created, elections won and newer worlds built.