I am thankful that I still have the will to battle this.
The will, motivation always comes from God. the more you'll be praying and reading the Bible ( listening to what God wants to tell you to do) with faith the stronger will be the will and the stronger you but don't be passive, God wants your struggle. My church says - do as if all depended on you ( your will power, activity) and believe, pray as if all depended on God. If you aim for maximizing the two you are surely (100%) reaching the goal. And not only this one - all your goals if only God approves them.
good luck, God's with you