Be very careful, then, how you live--not as unwise but as wise … Therefore do not be foolish, but understand what the Lord's will is. —Ephesians 5:15-17
Many believe in Christ but not all who believe follow in His ways. Believing in Christ is a start but not the end. The end is to yield to “all” the ways of the Lord—to seek "His" will. Sadly, many are pursuing “their" will on “their" terms thus failing to pursue the higher ways of the Lord. Your freewill was never intended for you to pursue your “selfish” will. You were created to have kingdom impact which can only happen when there is a selfless pursuit towards seeing that His will be done.
… continue to work out your salvation with fear and trembling, for it is God who works in you to will and to act according to his good purpose. —Philippians 2:12-13
Note the scripture says to “his” good purpose and not to your selfish purposes.
Jesus gave you the perfect example to follow as He had no selfish-will in His heart—only the will of the Father.
By myself I can do nothing; I judge only as I hear, and my judgment is just, for I seek not to please myself but him who sent me. —John 5:30
Live wisely—pursue the Lord's will.
"I am the vine; you are the branches. If a man remains in me and I in him, he will bear much fruit; apart from me you can do nothing. —John 15:5