That's really a wonderful and exciting experience as a theoretical physicist! This is such a nice read, I was able to understand the concepts I was about to research on when I read your PRD paper (especially on the use of the illustration in explaining the seesaw mechanism). You should also consider compiling all these blogs and write a book, you're a very engaging writer. :)
Hope you get back soon to the healthier you (before getting Covid), I know some people who tried doing cardio exercises to get back their stamina. But also, rest is such a great investment too.
Here's a question I've got, what will be the implication of the observation of the CMS collaboration on the future work at the LHC? Since the prediction and observed data shows that the heavy neutrino is beyond the energy of the LHC?