I will not be acting like a righteous person here but just give this a thought.
A lot of us know already the bad effects of sugar in our body but why do we still continue on consuming them?
(photographed at Starbucks)
Remember when you last got sick and made you realize the culprit for your illness? That is when you start this mindset of, "I'll never eat/drink/buy/use that again! I swear!". This is because you've known its bad effects on you and you wouldn't want to undergo the same sickness/pain again.
We only start changing when it is near or already too late to turn back time. This is a sad reality... so as early as now, start by omitting those sugary drinks and don't wait until you get diabetes/gangrene foot/cancer, etc...to CHANGE YOUR LIFESTYLE.
Better start early with your prevention than to deal with your illness forever!