Many mistakes are made on one's own, resulting in significant losses, which clearly affect one's psychological state. However, these mistakes are not serious and can be handled on one's own. After that, one can learn from the many mistakes that have been made, and of course, the risk of losing a lot of money will no longer occur. Even if one wins, one will not be tempted to continue playing but will instead withdraw and enjoy the winnings.
A calculating player will do exactly this, either you play without big losses and control yourself, or when you win something, you withdraw part of the deposit. It seems to me that with this approach, making mistakes is rare, because if you do not play more than the permissible budget, then this is already a limiter that will hold you back. I did not have a tendency to play too long or spend a lot of money for this, so I was able to avoid big mistakes.