Being successful requires being proactive and not waiting for life to come to you. It means you're on offence, not defence. You're active, not passiv… - Benjamin P. Hardy

There are websites such as listenonrepeat.com that allow you to loop YouTube videos.

Live as if you were living already for the second time and as if you had acted the first time as wrongly as you are about to act now! It seems to me that there is nothing which would stimulate a man’s sense of responsibleness more than this maxim, which invites him to imagine first that the present is past and, second, that the past may yet be changed and amended.55

Personality is not stable but changes regardless of whether you're purposeful about that change or not.