I regret everything i should have shut up says arsene wenger
I think you may be mistaken! Arsene Wenger, the former Arsenal manager, is known for his calm and composed demeanor, and I'm not aware of him ever saying "I regret everything I should have shut up".
Wenger was known for his philosophical approach to the game and his ability to think on his feet, often responding to questions and criticisms with thoughtful and measured responses. While he may have had his share of controversies and disagreements during his managerial career, I'm not aware of any instance where he publicly expressed regret for speaking his mind.
It's possible that you may be thinking of a different person or quote? If you could provide more context or clarify what you're referring to, I'd be happy to try and help you further!