"And I am certain that God, who began the good work within you, will continue his work until it is finally finished on the day when Christ Jesus returns." (Philippians 1:6)
Do you have problems with "stick-ability" or completing a task you started? How many of us have a load of "unfinished symphonies," whether they are craft projects, maintenance jobs, or tasks we started but never finished? Not being able to see things through to completion seems to be something so many of us are guilty of.
Aren't you glad God is not like us?
He not only looks at us in our sin and need and sees a thing of incredible potential, but He is prepared to work with us for the rest of our lives, changing us, as we allow Him access, to become more and more like Him. Then, finally, He will present us to His Father as complete and Christlike, without fault and blameless.
God has begun a masterpiece in your life, and He will bring it to completion also. You are a work in progress, so don't give up. God hasn't given up on you.