Is it the sugar you are trying to avoid or the sweet taste?
If it is the sugar and you still want to sweeten your foods, try a natural sweetener like stevia or PureVia. I used stevia to help wean myself off of sugar but now I incorporate other natural, zero calorie sweeteners such as PureVia.
If it is the sweet taste, I would suggest just gradually reducing the amount of sugar you currently use. For example, if you use a teaspoon a cup of coffee now, go to 3/4 teaspoon for a few days, then 1/2 teaspoon for a few days, then 1/4 teaspoon, and finally no sugar at all.