Car purchased, fraudulently concealed deficiency

Hello dear user, the following facts: I bought an accident-free car from 1st hand. The seller did not make any indication of paint damage or repainting. After some time I noticed something so strange at the door side back. The paint was slightly repainted. I approached the seller and he meant it was a scratch and it was expertly repainted in original paint (not). Otherwise the car would be accident-free and he would know nothing about repainting. He is mi I thought I was okay, no problem, it’s a little repainting. Now there are always more signs of wear that didn’t happen before. Well, I thought I was doing a private check at the Dekra in hindsight. I now stupidly made the used car check after the purchase and with the paint seal knife was found on the side where small repainting was found a VIEL higher value than in the frame of the door or the Dekra definitely meant that the whole car was repainted and possibly the left side had an accident. You also recorded this in the protocol. The paint seal measurement showed the double on the side where it was repainted. It should have been spashed there and then repainted. If the whole car has been repainted, the mirrors/windows are not different original and identical, as well as the window cranks are not turned in the original state (normally should be both are in the same position but unfortunately is not so), what kind of possibility do I have? Thank you very much!