the greek word for repent is "metanoeo" which means to think differently or afterwards, i.e. reconsider. it is an about face, or basically to turn away 180 degrees,
Acts 2:38 Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost, Don't get discouraged though, cause we live in the Grace dispensation. Not the law anymore. Yes we need to get into His word, and mosty His word in us, however, we need to pray too.... It is hard for people to live according to the Word without revelation, and without His spirit. It is written quench not the spirit. I pray for revelation, so that I have a deep desire to change and live according to His word. It is amazing when God show's His children something that Hewants for them, and then He helps them to accomplish the task, or change, or maybe even a work. But unfortunately we are not saved by works. Lord bless!