I think you have a solid plan. I have done exactly that in the past. Finish up what you have and just don’t buy any more.
As far as dessert, I will melt a couple of pieces of unsweetened bakers chocolate into a jar of coconut butter and pour them into a silicone candy mold & freeze. The coconut butter is just sweet enough to balance the bitterness of the chocolate without sweeteners in it. They also slowly melt in you mouth, which makes them last longer. If you wanted to add more fat for satiety, you could scoop in some coconut oil as well.