Lord Krishna said: True, O mighty-armed, it is very difficult to control the mind. Mind, by nature, is extremely restless. But, with the right practice coupled with dispassion, any mind can be restrained and sublimated.
Krishna has a knack of not repudiating what the questioner states. Giving a complimenting note to the questioner, Krishna always states what he wants to, unambiguously, a quality worth emulating by all exponents of truth.
To lay hands on the mind is, of course, not easy because it is powerful, difficult to access and extremely slippery. But there is no question of giving up the task at all. Human life is meant to take up a task and achieve its end with prudence and perseverance.
Repeated effort is required to tame the mind. So also is the need for sufficient dispassion. Just as passion draws one to the world, dispassion makes him not cling to it.