IRREVOCABLE!

God’s gifts and God’s call are under full warranty—never canceled, never rescinded. (Romans 11:29 MSG)

Just because you changed doesn't mean that God changed! If He Called you, you're STILL Called; if He's  gifted you, you're STILL gifted. God hasn't changed His mind about you...He's going to use you for the purpose in which he created you for. Don't believe me, ask Jonah who tried to run from his Calling; so you say that you drink, ask Noah; been in prison, ask Paul and Silas; sleeping around, ask Rahab; committed adultery, ask David; bullied other people, ask Paul and if your a thief; simply look at the man on the cross who never did anything good...except believe (which we're all Called and purposed for) and today he is in Paradise!

If He's created you with something in mind, then He won't create and then change His mind!

Just like a GPS, the route may change, but the destination remains the same!