I saw a video yesterday of some kid trying to show off his dice skills. He ended up losing around $1,800 in about 10 seconds, bankrupting himself and sending him into tears. I would say that gambling strategies work until they don't, and the cruel part is when they stop working they usually take everything you thought you had once made with them leaving you feeling stupid for thinking you had a strategy to beat the casino in the first place. It happens to everyone who tries it eventually. That's just how odds work. However, if you can trick desperate people into thinking you have a working system, then you can sell it to them, which is the only way gambling schemes ever truly make money.
That's true about the strategies working until they no longer do. That would be even more true if OP had any strategy. If we watch his progress he did not make any, went all in and won, tried to continue but was losing and quit. So his gambling was something like loss, win loss, win, all in win, loss, let's call it a day. I could record a similar video cut from the middle of my gambling. Keep going all in until I win, not show any of my big loses and start a thread boasting about that one time I doubled my money. That would be a waste of time but some people need a a boost of confidence.