"self control" means the ability to put all carnal emotions and behaviours to subjection and direction of the Holy Spirit.
Apostle peter told the Christian Church of his day that whoever lacks self control is shortsighted up to the level of blindness 2peter 1:9.
The moment we are able to master all sinful habits in our lives and allow the spirit of God to take control of all our daily activities,
then people will see the fulness of the grace of God's salvation in our lives.
question to always ask is:
How can we master our canal desires and appetites and bring them to the control of the Holy Spirit? Daniel 1:8; Genesis 39:7-9; Acts 20:33-35.