I'm at the beginning as well and TradingView is a real rabbit hole. There is a lot you can try and I as well found some extremely helpful third party indicators which make technical analysis a lot easyer. I'm as well connecting with other traders on social media and communitys at for example...
Amateurs think about how much money they can make. Professionals think about how much money they could lose.
I think he was successful for a short time and maybe it was luck,insider information or something else. The Question is, can he repeat this over time. Otherwise he will lose the money...