The mind is a tool developed for our survival. You are not the mind, nor the body but rather one that can perceive the mind and the body. However, one is now constantly wagged around by the mind and its fears and desires. Often we find ourselves trampled in a parade of thoughts and washed around in a flood of emotions. Meditation is simply the process of returning Home to our true nature as the witnessing consciousness in which arise all thoughts and emotions. It is merely the fragrance of Being Human.
Meditation cannot be done, it will happen once we stop doing everything and anything. Now is all that exists, all else is merely grasping at the wind hoping to change things that are generally way beyond our control.
Talking about meditation and whether you believe you can do it or not, is pointless. When we rise above our mind, emotions and body, meditation will happen. Simply listening and following is enough. Meditation is in our very nature, and it happens for us all. Behind all those thoughts is a Witness. You are that Witness.