It depends on where you live and what country cares about your opinion. If you are an American then the government is set up for you to be counted.
Don’t worry that you don’t know enough to matter. No one really does. The government is too large and has too many cooks working on it for any one person to know where it’s going.
Don’t worry that you are black, white, or were born in Siberia. Don’t worry if you live off food stamps. Let you opinion be known. Vote. Vote for someone. If you like where we’re going, then vote for more. If you think we’re going in the wrong direction, then vote for a u-turn.