Keto has never worked for me either. (Despite the fact it is so popular on this forum!) I too have had life long sugar craving addictions. In recent years, I have managed to keep them at bay mainly with dark chocolate.(not as tastey, so I can control myself more!) Currently I am realizing a huge part of the cravings is actually gluten, so cutting that out helps. We each need to tune into ourselves to figure out the healthiest diet. One clue for me is I loved fresh fruit as a child.