Is It Just Me?

Okay, so every election, I get geared up. I make sure I know everything about each candidates platform. That was until, I turned 18. I can officially vote, there is an election right around the corner, and I have no idea what is going on. As it gets closer and closer to election time, I get scared. What if my vote doesn't count? What if I vote for the wrong person? But is there a wrong person? Because, after all; they are all politicians.