I can't imagine how a representative democracy would operate otherwise. In representative democracies you're picking some person to make decisions on your behalf, and that person is different from you so some of their decisions are not going be the ones you would have made if you were in their place.

You may be wanting direct democracy, in which you would personally get to vote on the government's actions. Your "representative" would be perfect in that case because your representative would be you. But since you would only represent yourself, that's not what would normally be called "representative democracy."