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It seems like his mother is disappointed, although I'm having a hard time to get it since if the OP was a very good son, 37 years old and a fitness influencer, I would expect from his mother to be supportive and help him fight his addiction not the opposite, abandoning him after his first fall. Up to what he wrote in the story, he doesn't admit his only fault which can be a sure sign of a bad addiction when you blame the casino for your losses.
I suggest for him to share his story on YouTube as an influencer, admitting his mistakes and addiction to warn people about the dangers of gambling irresponsibly. It could be a lesson for all. I believe that sometimes it's good to go public, and to have people who will support you through your tragedy and get back on your feet faster.
I somewhat doubted the truth of his story, some of it sounds strange and counter-logical, I'll keep them for myself for the time being, though.
And... sharing his story to YouTube as an influencer? Yeah, good advise. I believe that's his intent, a hidden threat he slipped in between his narrative, stressed at the end of his opening post, that reads: "I am a fitness influencer, I'll spread this story to my audience if this case does not get resolved to my favor."