Becci, the wax is great for SMALL repairs. It will do a nice job on a scratch up to about the thickness of a penny. It will also work on a finishing nail hole or similar that's smaller than say the size of a pencil eraser.
The next step up is the shellac sticks that I mentioned in my original answer. These can be used on finished WOOD without having to totally refinish. The wax doesn't have any strength and the shellac really has very little so both can only be used to fill holes.
If you need more than that, you will have to do more. Becci, start a new thread with info about the problem and let's see what that brings.