If you, having watched the video about Jesus, truly trust in Him, and want to confess what the bible calls your "sin", then here is a suggested prayer:
Thank you for sending your Son to die for sinners just like me. I believe that he died in my place and took the consequences of my rebellion against you upon himself. I am amazed and so thankful that he suffered the punishment I deserved so that I don't have to. I am sorry for the wrong I have done and want to turn from it.
I believe that Jesus came back to life to prove that he had beaten sin and death itself and to give me new life. Please make right my relationship with you. Send me your Holy Spirit and transform my life from within.