This is a problem for me as well! I have a crazy sweet tooth and always have. I have tried cutting it out completely The first time it was because I was cutting carbs for a bodybuilding method and cutting sugar was the easiest way to lower my carb intake. I am not saying carbs are bad, it's just something that was working for me at the time. Anyway, I was completely off of sugar for 3 months, and my acne almost completely cleared up! I have had horrible acne since I was a teenager, now in my late twenties, it's controlled through diet and a dermatologist. After that, it's been relatively easy for me to keep my sugar intake low because there is a direct correlation between my skin and my sugar intake. Also, what kind of sugar matters: the less processed the better. The type of sugar effects blood sugar differently and makes your body react differently. There are studies that sugar is incredibly addictive, and cutting the addiction by staying away from it completely is often the best way to curb it in the future. Like MichelleSP said, taste buds change, and the sugar is not as appealing when you aren't used to it. I can definitely say this from experience, now that I have been mostly off of it (cane sugar and corn syrup are the ones that bother me) for about 2 years, I really don't care for it anymore. I prefer more rich sweets, like little bits of dark chocolate (it is not hard to find stevia-sweetened chocolate), and homemade desserts that I can make with a lower sugar content and not such an intense sweetness.
One of the easiest ways to avoid large amounts of sugar is to make things at home. For example, plain nonfat greek yogurt in a big container is actually cheaper than the individual ones and super easy to pack up the night before work in a little tupperware. You can add bits of fruit, or just some honey (I love honey and cocoa powder in mine) and create a great flavor without all the additives and make it a little less sweet than the pre-made ones, often reducing the calories as well. Baking my own sweets using an alternative like stevia or agave nectar (or just a banana base, pinterest has a bunch of recipes like this) gives me something sweet that is often also a really nutritious snacks with whole, natural carbs (like bananas, zucchinis, dates) that are more filling and provide more energy than something overtly sugary.
Also, eating sweets after a filling meal helps me not eat too much of it. If I'm feeling like eating a snack, I'll eat something more wholesome, and then add a little something sweet at the end to help with portion control. Another reason for this is because I think it's important to eat when you're hungry, as long as it is an intentional sort of eating.