Stopped consuming sugar!

Came my 40th Birthday I was getting bigger and bigger, couldn't imagine my life without sugar in my coffee, but then, every time after such coffee I felt sleepy, after each energy drink, didn’t feel more energy at all and I looked in the mirror - OMG, after 5 years I will look as grandmother. In 9 months I changed everything. 4 months WITHOUT fitness, everyday 3-6 liters drinks without sugar, including coffee with cinnamon, water and herbal teas, stopped eating in 14 or 16pm , just after lost 25kg I started make sports - running. In 2 years I run 65 Half Marathons, distance 21 km.