How do you look for your own leaked nudes online?

"Assuming I know when were they taken, but I'm not able to do reverse image search, how do I approach it? This period of my life is kinda blurry, drugs and other bad decisions, all I know some pics might have ended on some gayporn sites, and I'm not thrilled about having my penis all over www. Not knowing 'where and what' is really messing with my head, where do I start? I'm from Europe if that's any help"Believe me or not, asking for a friend.