If you are indulging in willful sin and knowing disobedience, then get the cross into your heart.  Your lack of self-denial mocks your profession of being a Christian, mocks discipleship and crucifies your Lord afresh.  There is a way to victory for you.  There is strength for your weakness.  There is a dying that will bring about a new power for living.  We must not restrict self-denial, along with prayer and fasting, to the Lenten season.  Lent is meant to strengthen the self-discipline that we should practice at all times.

“And he who does not take his cross and follow after Me is not worthy of Me.” Matthew 10:38 (NASB)