Yes, agree. Mindset and attitude is very important. I use to say that in terms of weight loss. Although the type of diet can be important, it was 80% attitude and 20% diet/methodology. That losing weight has to be on par with e.g., getting up to go to work vs. getting up on a Saturday to do something recreational; i.e., it has to be a priority . You can not expect the diet (or anything or anyone else) to make you lose weight. If you cheat one day, do not use that as an excuse and say the diet/exercise failed you. It is the essence of why people ask about "what diet you used to lost weight", when what mattered was the commitment. Same w/ long covid, be totally committed to what you feel is the best plan to being as healthy as possible, and it will help in (your perspective to) continuously push forward.