I want to answer this question without too much interpretation of the question. As you put your question into the category "Philosophy", so this gives the hint that you know about that humans are not free, but that there is the possibility to free oneself, although you might not know how this can be done.
To be able to free oneself, one must first, as a basic step, know what makes oneself not being free. This might be: Ones limited knowledge. The solution would be to gain more knowledge. So that's what we are doing now. So let's say we have the knowledge of what makes us limited in our freedom. Then we know, that humans are, in their momentary state of evolution, 'conceptual beings', that means that we find sense and meaning by giving every thing and all a name and then we explain what it is, creating a concept that we can establish into our worldview and our self image. As our knowledge is limited because we can't know all and in all its various aspects and how it is connected with other conditions and facts, so our knowledge always will be limited, but a concept about something doesn't include all, it serves by giving a certain image, even if this is diffuse. So far so good. But what does it mean in respect to our lack of freedom? Our concepts and our self-image let's us relating to every thing that comes to us in daily life in the same limited way as our established concepts are limited. We relate limited, then we respond with the same limitation and we are not free to do so in a different way: We are not free! So what can we do to free ourselves? It is not possible to free ourselves from our self-image and from our concepts, because these are an important part of our personality and we will defend these with all means. But we can make one step by avoiding our strong reactions happening because of our limitations. When we encounter a situation in daily life, then we are reacting. That is the moment, when we can do a step to free ourselves by observing our reaction and being aware of it, because mostly we are not conscious about our reactions. That's the first step. Then when the same situation repeats, then we will become more and more aware and then it will happen, that we will not burst out with our reaction, but we still react with thoughts or emotions, but now keeping them for ourselves. Then later we will be able to observe and be aware from where the real impulse comes that has triggered our reaction and we will see that the real reason is not coming from outside, but from inside of ourselves. Then we can do the next step and making a decision, that means eventually dropping the part of our self-image that has caused our reaction. If we are able to let go of it, then we have freed ourselves from it.
This might give you an idea how you can free yourself, although it is a quite large field to work on and not done quick and in an easy way. That's the reason why not many people are ready for it and even though here and there a question like yours appears, that doesn't mean that something serious will start about it. It is good that you ask, so better continue asking. Without question there is no answer, let's go on!
PS: Self-knowledge is the key to free yourself!