Thankfully the festival is coming back. As an online competition, I recorded all my solving (partially for WSC Round7, I was careless and overlooked the lack of memory), and they have been uploaded in my channel in the order I solved, and reordered in the playlist. Details can be seen there and in my submission, so I just put the summarized thoughts in short.
I managed to adjust my schedule and decided to try all the Time Trials on time. I don't know how many others did the same, but at least Hideaki did? Maybe reckless, sacrificing the main results, but I wanted to do it with madness. Predicting the accumulating fatigue, I solved from WPC rounds, mostly in the first day, then weekdays are for TTs and some Bonus rounds, and finished the remaining rounds on next Saturday. In the midway my performance recovered almost ridiculously after sleep (less than 6 hours though), but this was not the case in the last day, I was not competitive but just struggling. One of my regrets was that I was so bad in some WSC rounds, partly due to my condition, but I should accept this as my current state. One positive thing was topping 2 rounds somehow.
Thanks organizers for such a great volume of event, I enjoyed everything. I truly wish 2022 to be normal year, and until then, I have much to improve, physically and technically.