If your only political involvement is to vote, then no I don't think you're going to have much success in influencing policy. There's a whole lot more you can d

If your only political involvement is to vote, then no I don't think you're going to have much success in influencing policy. There's a whole lot more you can do: attend council meetings, participate in the q&a at debates, work within a party (where applicable) to support candidates and issues you believe in, write well-researched articles intended for an audience that doesn't already agree with you, or even run for a position in government yourself.