Your thought is the most powerful weapon you have, in the mind nothing or no one forbids or allows, everything is valid, in the depth of your mind, only you have control, what happens there only knows each one.
There is no way to know what each biological hard drive stores inside of itself, nor how it will be used, nor when emotions and behavior emerge. These last two are the manifestations of what is inside the thought, the peripheral output that, in turn, activates or deactivates the executing entity, which is the body.
The mind itself is in charge of establishing permits and prohibitions, it is programmed to identify what is possible, what is valid, viable, good and socially accepted. But he also has the task of establishing personal permissions, of giving the being the power to choose whether to act or not. One of the most common ways that the mind uses to block that permissiveness with itself is: "I can not do this."
Given this phrase, you have to look for alternatives because it is a series of words that creates in the person a limiting belief, the "I can not". And that "I can not" is what stops and avoids executing actions.
It is in this way, that we are the same people who, through fears, insecurities, lack of positive self-esteem, end up exerting an effect limiting ourselves and that is the external factors that end up having the greatest effect in the long run. than any personal capacity or potential.
The best way to eliminate that negative thought and prevent a limiting belief from melting into the mind is to think about what can be done, to set aside what is known, it can no longer be done or there is an impediment to a certain activity . The brain already knows that it can not or should not do such a thing, perhaps if there is a signature to do it, but if one thinks that it is prohibited, not allowed or impossible, the options are closed and with that closure, the limiting belief of "Can not" and this involuntarily moves to other activities.
Therefore, do not let your own mind through unlimited beliefs, which hinders your own personal development. Remember, nobody has access to your thoughts, only you. There may be pressure in other areas of your life, demands and even, interest in controlling you, but finally, your mind and your thoughts will only receive the orders of what you want to believe.
