arceus 1, thanks for your reply. The issue is that, to fly anywhere, you have to leave the Battle Department. When you leave, you lose all your progress and have to start all over again when you return. There is no way to heal and continue. Trying to complete the Battle Department in one fell swoop seems impossible, as there are dozens of high level trainers between all of the contests, each with six high level pokemon, and beating them all with just the items in my bag does not seem like it could even be done. I like a challenge, but that is too much without any way to heal there. Pokemon Resolute has been a great experience up to this point, but I'm now playing Pokemon Vega.
i used the pokemon centres many times just take only 1 challenge at a time and you will not lost your progress when you go to pc