Scratches from kitchen sponge – conditioner?

Hello community, I was stupid today as never before. After driving my A3 through the washing machine (textile strips), I still had a lot of small yellow spots like 2-3 spots of birdkotresten on the paint. I idiot then carefully cleaned all the places with a yellow kitchen sponge (rough side) and water. When the water dried, I became pale, because now I have almost around the car everywhere light, cruising scratches. The scratches logically don’t mean deep, a about you see them. Especially at the place with the bird dropping. Now I want as long as possible half-way sidering (possibly several years) of the scratches and have heard that a conditioner can help. Is that true or do I have to ask for something specific? What does this cost roughly?