I beseech you therefore, brethren, by the mercies of God, that ye present your bodies a living sacrifice, holy, acceptable unto God, which is your reasonable service.
-Romans 12:1 (KJV)
By our own power we are destined to fall into our same habits and mess because that’s what the flesh leads to. Man, relying on his own sinful nature can only cause him more anger, jealousy, pain, hate, sin, and so forth. There is a difference, however, when we stop trying to better ourselves by ourselves (which is impossible) and let God take control of us through the work of the Holy Spirit. This is the only way we can become better; through letting God work in us and lead us. To do this properly we must know what it is that God wants us to focus on in our lives; after all we owe our lives to Him.
OUR LIVES BELONG TO GOD! WE ARE HIS!