This is normal to put frustration on oneself, feel disappointed for making the wrong picks and sometimes shift frustration towards players and clubs for casting a bet slip and turn it in to a normal football banter for that week and that's all for those of us who play only soccer bets.
If everyone gambled in a way most of us do, there would be fewer pointless lawsuits against casinos.
It's okay to be frustrated and sometimes angry when you don't win. You blame coaches for their faulty tactics and referees for wrong officiating. But what makes you a mature gambler is taking full responsibility for your actions. Blaming the casino for the outcome of games is wrong because you were not coerced into placing bets.
Some lawsuits against gambling are mainly because of accusations of scam or poor services and not necessarily because of addiction.
Some of these lawsuits; they argued and claimed some games were built to exploit gamblers and that that most RTP were fraudulent.
Most of these filed lawsuits came from addicted gambling players looking for compensation and a way to express their frustrations.