Hey guys, its my first time wet sanding paint and i got into a little trouble. I have a white audi a6 2009 and on the passenger side window frame at the top there was a scratch. It was too deep for polishing compound so i decided to try and wet sand it. I went a little too far, and now i can see about 4 layers I'm thinking. its a ring that goes outwards.in the middle it is a yellowish paint, then white, then white again, and then clear coat. How can i fill that in? I have touch up paint and i tried that but its not smoothing out so well. Any advice? If needed i will post pics.