Of course, it is not in our mind and we try to avoid mistakes but still, it comes to us no matter what we do. But this thing sends us a message that every mistake we make has a positive result and one thing is that we improve and change our style to a better one. We could just think that we have to limit our gambling time, stop being greedy, and avoid addiction because we already know the outcomes as it happened to us in the past and we don't let it happen again.
Therefore, I would say that we don't have to be afraid of committing mistakes because this also helps us to see things that we need to change and become a responsible gambler.
Everyone is prone and vulnerable to making mistakes and it is a fact anyone can not deny. But however, your actions and reactions towards your mistake is what is most important, how you were able to handle your mistake, the effects of the mistake and it's impact in your life generally either positive or negative, it best we maximize the opportunity of learning a new things when we make mistake. Dwelling so much on our mistakes can be very retarding in looking at making improvement in whatever we are doing and not only in gambling.