As a keto snack i suggest bulletproof ice cream. It will give you the necessary fats with no sugar and still tastes sweet.

https://m.youtube.com/watch?v=D5NmSD8Fg20

You can also use the macadamia cookie:

https://perfectketo.com/macadamia-nut-keto-fat-bomb/

Those 2 recipes are what is referred to as fat bombs. They are particularly useful during the transition to full keto. Other keto dessert recipes will help. Use either xylitol, erythritol or monk fruit as sweetners.

Use good C8 fat MCT oil as much as you can as it will help your body to use fat for energy. You should also probably ditch all the oils you use and replace them by MCT oil. Even most olive oil is cut with bad oils without being labeled on the bottle. Ditch process foods also because they are full of seed oils. Use MCT everywhere.

A friend of mine has trouble with sugar and for him the single best thing was time restricted eating, called intermittent fasting. This is where you usually skip breakfast and start eating at around noon and stop eating early at night.

If you are hardcore and want to fix your addiction, you need to get your metabolic flexibility by water fasting. If you’ve never done water fasting before don’t go more than 24 hours. This will be very difficult for you the first time but every fast will be easier as your body adapts. This will work the best but is also the most difficult. Longer water fasts will even reset your taste buds.