I transitioned gradually instead of trying to go cold turkey, which never worked for me.
The first thing I did was write down everything I ate/drank each day. It's called a food log. It made me aware of how much sugary food I was consuming.
From that I learned I was scarfing 8-10 dessert servings a day. A cookie, a slice of cake or pie, a muffin, a sweet coffee/tea, an ice cream, a donut, a soft drink, pancakes/french toast with syrup, sugar or honey on cereal, a candy bar, chewing gum: each is a dessert serving. They are dessert foods. You get the picture: I was eating 70+ dessert servings a week.
My first step was to cut down to three dessert servings a day. That's 21 desserts a week. I chucked the sugar bowl and honey pot into the garbage.
To slake my sweet tooth I allowed myself all the fresh fruit and whole fruit juices I wanted as long as they didn't have any added sugar. Turned out I could only eat/drink so much of it. Fresh sweet vegetables are also allowed: tomatoes, sweet corn, carrots, sweet potatoes, beets, peas--like fresh fruit they have natural sugars and are loaded with vitamins and minerals.
Then I transitioned to one dessert serving a day where I've been for many years. If injury or illness prevents exercise I drop to one dessert a week. Some weeks I have no food with added sugar at all.