John 8:36 says that if Christ sets us free, we are absolutely free indeed. The freedom we receive from Christ is a reality we should believe and embrace. When we receive Him as Lord and Savior, we are set free from the PENALTY and POWER of sin. But because we still live in a fallen world, we are not yet free from the PRESENCE of sin. It’s still there, trying its best to appeal to our flesh. It’s called “remaining sin” or “indwelling sin” (Romans 7:14-25). We will only be absolutely free from the presence of sin when Christ returns.
Now, because there’s remaining sin doesn’t mean victory over sin is impossible. By the power of the Holy Spirit, Christians are able to progress from one level of holiness to another, overcoming one issue of sin after another as they go through life. This is called practical/progressive sanctification—an experience every Christian enjoys daily as they persevere toward Christ-likeness.
I suggest you meditate on Romans 13:11-14. Especially verse 14, which exhorts us to not make any provision for the flesh.
For a better understanding of what that statement means, go here: http://www.joshharris.com/2007/02/feeding_the_flesh.php
Hope this helps.
Always here for you, Jade (haha)