As we walk with God on the path the He has prepared for you, victory will come.
1 Corinthians 15:57 But thanks be to God, who gives us the victory through our Lord Jesus Christ.
The requirement to have this victory is found in:
1 John 5:4 For whatever is born of God overcomes the world. And this is the victory that has overcome the world-our faith.
Have you been wounded by or bruised by the enemy? Do you have a hard time believing that you will have victory in your circumstances? Then, you must listen to the promise that you have from the Lord.
Matthew 12:20-21 A bruised reed He will not break, and smoking flax He will not quench, till He sends forth justice to victory; and in His name Gentiles will trust.
You must re-establish your trust in the Lord. If you do, then you can expect to have victory in 2018.