How I did it:

1. Literally threw away any product in my house that contained even 1 g of sugar.

2. Became obsessed with reading labels. If it has added sugar, I won't buy it

3. No fruits either.

4. no sugar replacements like stevia and such

5. If i eat out a lot, i go for options that don't contain sauce. sauce is where they sneak in the sugar

6. reject desserts. Just don't eat'em anymore

after a few weeks, your tastebuds will reset to baseline. Suddenly things that aren't sweet will taste sweet.

At that point you can start eating fruits, i would reduce it to a minimum tho. I did 1/2 a frozen banana Max per day.

A good book for addiction in general is dopamine nation.