well my car is about 3 years old. and I have what a typical 3 year old car has(well mine anyway) some scratches and imperfections(mostly in the plastic) I picked up some mineral grea touch up paint. I know the way to use it is not just dab it on, but is there a special way to mix it with something to blend in around the area? Or just try to use it the best that i can? Because one little place i tried it on, the paint looks WAY too dark, any suggestions? thanks.