Sugar is completely non-nutritive, terribly acid-forming to our system, pro-inflammatory, fuels yeast, fungus, cancer, contributes to depression, and raises triglycerides and cholesterol. If that doesn’t raise an eyebrow, sugar also breaks down the collagen in your skin and ages you more quickly than you need to.
You will be more motivated to let go of sugar once you really understand and accept the negative effects it has on your health. A few resources include, the book Sugar Blues by William Dufty, the NY Times Magazine article Is Sugar Toxic? by Gary Taubes, and the video Sugar: The Bitter Truth by Dr. Robert Lustig.