Lessons from professional players
Every professional bettor has not only victories behind them, but also dozens of mistakes that they have gone through. Learning from their experience is valuable. I myself noticed how the approach changes when you start to look at bets not as excitement, but as a game of calculation. The article https://fantasykhiladi.com/sports/how-sharp-bettors-think-what-you-can-learn-from-the-pros/ really helped me along this path. It contains the principles that the pros adhere to: from analyzing the composition of teams to distributing the bankroll and managing emotions. I started keeping statistics, planning bets in advance and stopped playing spontaneously. Reading such materials helps save money and nerves - because you learn to think like a professional, and not act on intuition. I especially recommend it to those who are just starting out and want to avoid typical mistakes.
Success stories are always inspiring, but lessons learned from mistakes are no less important. Professional bettors often share their failures to help others avoid the same pitfalls. This is invaluable experience that should be used before you start acting blindly.