This is the best way to think as a gambler, if you can't take responsibility for your decisions or actions then you should not be gambling In that first place...taking full responsibility for your losses also makes you become a better gambler and this happens when you start learning from your mistakes and becoming more careful with that decisions that you make when you are gambling, blaming others won't help
True, acceptance is very important to move forward, if you can't accept and you can't take the blame then better not to gamble or not to involve yourself to any gabling activities, pointing fingers to someone else only shows that you are at huge risk in losing more than you can afford to let go, as you'll keep on pushing forward even you already loses a lot, you will find ways to justify the situation just to continue playing.
I've learnt that once you stop blaming people and you begin to take full responsibility of your choices, it will automatically make you to start to learn grow and make smarter moves when taking subsequent decisions. I believe that the moment you begin to shift blames to others by allowing others to control your decisions in gambling, trust me, it is the moment you should agree that you are setting up yourself against losses that are worse than the ones you have encountered in the past. So, you've got to learn how to accept your mistakes, identify the solutions and move forward to the next challenges ahead.
Indeed, as you have that full obligation with such amount that you'll going to use, I guess most of those responsible gamers managed to understand both risk and potentials, the very reason that they keep that composures and balance with their gambling activities they are not blaming anyone but they take it thing on their own and managed to move forward after.