I lost money most in fiat casinos because I have known them since many years ago unlike crypto casinos that I know about 5 years ago. As long as you register on a casino and you started gambling, you are most likely to lose because all the games are most in favour of the casinos and not gamblers. In fact, most games in crypto casinos are in fiat casinos except just few. They are just the same if comparing which one is riskier.
Same principles is what controlling the other casino be it fiat or crypto casinos, the main focused should be that while gambling we should find what that interests us from the site, for instance; if playing slot game could be the source of our Joy or could enhance the level of our fun then we should only focused on the game we do real like, than jumping from games to game without knowing how those games works. To me it seems to be blind gambling, and if someone is going for sports betting it would also be better to stick on some specific levels of bet range or odds to reduce the risk at which they could lose money, although the most important thing over there is gambling with the amount they can afford to lose without any regrets while gambling.