Even so consider yourselves to be dead to sin, but alive to God in Christ Jesus.
Christ took our sin on the cross and freed us from sin and all that came as a result of sin; sickness, disease, poverty, lack, fear, worry, stress, etc. Consider yourself dead to all that came through sin and alive to all that we now have through Christ. Stop thinking about and magnifying what you see in the natural; instead meditate on and magnify what Christ has done for you. Scripture teaches us that as a man thinks, so is he.
If you see yourself sick, lacking what you need, or defeated, you are going to continue to allow the very things that Christ has freed you from to over take you. You need to renew your mind to what God says about you. Consider all that Christ has done for you instead of what you may be facing in the natural. We walk by faith, not by sight. To do so you must consider the Word above everything else. Stay in the Word of God and focus your thoughts on what it says. The Word is truth and even though it may be true that you are facing something in the natural, the truth will change what may be currently true in your life. What you see is subject to change. What are you considering?