self-discipline (n.)

• abnegation
• aplomb
• composure
• constraint
• control
• denial
• discipline
• forbearance
• frugality
• independence
• moderateness
• moderation
• possession
• renouncement
• renunciation
• restraint
• self-command
• self-control
• self-denial
• self-government
• self-possession
• self-restraint
• soberness
• sobriety
• temperance
• temperateness
• willpower