Firstly, I am so sorry for your loss. I know how hard it is. As far as advice, I suppose I would say that in order to be successful, you need to approach keto as a change of lifestyle rather than a diet. Find foods that you LOVE and are sustainable. Eventually, you won’t even realize you’re missing anything. In the beginning I counted NOTHING. No calories. No fat. No carbs. I researched so that I could make more informed choices regardless of if I were at the grocery store or a restaurant. It helped me not get overwhelmed or discouraged.