I believe all persons should obey God’s commandments.
However, there are two errors that must be recognized & rejected:
LEGALISM: Attempt to work one’s own salvation by lawful obedience rather than trusting in Christ’s obedience alone.
ANTINOMIANISM: Declaring the saving grace of God gives one liberty to live without adherence to His eternal Laws.
Neither such practice reflects true Christianity.
With your definition I can say that I am a Christian.