2Co 13:5 Examine yourselves, to see whether you are in the faith. Test yourselves. Or do you not realize this about yourselves, that Jesus Christ is in you?--unless indeed you fail to meet the test!
2Co 13:6 I hope you will find out that we have not failed the test.
Are you examining yourself to see if your faith is real?
When you examine yourself you need to remember your position as a Christian, that is In Christ.
When you have examined yourself what are you going to do with the sin in your life that you have found? Are you willing to repent from it (Complete change) or not? Sometimes we will find sin in our lives and we know we need to remove it from our lives but we find it really hard to remove. The best way is to ask God to help you and pray about it, keep whatever it is that tempts you do that sin away. Try to avoid the thing or things that make it harder for you to resist the temptation. Remember temptation only comes from the devil and it is not a sin if you are tempted.
Do you know the voice of God or are you too busy to hear His voice? If you do hear it are you willing to listen and head to His voice?
Focus on Christ not the things of this world. When you are focused on Christ it is easier try and reach the goal of becoming complete in Christ.