Self-reformation is impossible and an abomination to God because we can never become sinless no matter how hard we may try. (Galatians 2:16)
After we get saved….
We pray for the filling of the Holy Spirit and ask Him to mould us into the likeness of Christ (Galatians 5:16, John 14:26) but two things are required:
1. Surrender….. the Holy Spirit (UNLIKE evil spirits) does NOT dominate or try to control us… moment by moment we have to VOLUNTARILY surrender our will to Him (and His leading) and if we resist Him then He will allow us to do our own thing until we repent and seek restoration of His guidance and help. This is why we are a LIVING sacrifice (instead of a dead one) because we are in a constant state of sacrificing our carnal ways to His spiritual leadership. (Romans 12:1, 1 Corinthians 6:19)
2. Faith (Hebrews 11:1)…. we have to believe that the Holy Spirit is working in us even though sometimes we may not “feel” His presence and fail in some sinful way. (2 Corinthians 5:7, 1 Peter 1:9)
The Holy Spirit always respects our will…. we have to want to submit our wishes to His at all times…. and there may be times that we dont want that…. but this in a nutshell is what living the Christian life entails. (James 4:7)
As we grow in the Lord… we will find ourselves more and more manifesting the fruit of the spirit…. love, joy, peace, long-suffering, gentleness. meekness, faith… this is His gift, although we may try to manifest these traits…we will repeatedly fail until He shines through our personality (Galatians 5:22)