If you want to do more than vote in an election, especially if you are an American, then read this: THIS ELECTION IS FREAKING ME OUT, WHAT CAN I DO!? (An Introduction to Field Organizing). Obviously this is geared towards Hillary Clinton supporters for president, but read it regardless of you who you plan to vote for and at what level. It should help you get to the point of at least knowing the right questions to ask and where you might go next to get more involved.
Voting is important, but there is much more to democracy than that. If you step up, your involvement will make a difference, regardless of your role. Good for you for taking that next step.