So I find it to be a law that when I want to do right, evil lies close at hand. For I delight in the law of God, in my inner being, but I see in my members another law waging war against the law of my mind and making me captive to the law of sin that dwells in my members. Romans 7:21-23 esv
Don’t feel bad. The Apostle Paul, the most spiritual Christian who ever lived, admitted to still struggling with his sinful nature. Like you and me, he confessed that he had desires that he knew were wrong. Paul said that even when he wants to do the right thing evil desires prevail. Oh how we endure the exact same war in our minds and spirits! Then he asks the question.
Wretched man that I am! Who will deliver me from this body of death? Romans 7:24 esv
Stuck in your wretched sinful state there is no hope. But thanks be to our Lord and Savior Jesus Christ for His salvation work on the cross. Even though the sin nature still persists you have another nature at work within; the Holy Spirit, the Spirit of God. Now you can say with Paul
Thanks be to God through Jesus Christ our Lord! So then, I myself serve the law of God with my mind, but with my flesh I serve the law of sin. Romans 7:25 esv
I’ve heard the war in our spirits likened to a dogfight. Whichever one we feed, our new nature or old nature, will thrive and prosper. Which nature will you let thrive? The choice is yours.