Advice on my personal situation conciergerie services

I am want to setup my auto entrepreneur account.

I was thinking to register as a conciergerie, I am a chalet manager in a ski resort whose main role is being a concierge, welcoming guests to chalets, booking activities, being on call for them etc. We do some cleaning as well but from what I have been told that is a regulated activity so it’s best not to mention that or do that? I understand conciergerie would be a non regulated commercial activity.

1. Do you have any recommendations on choosing an activity best suited for me? As mentioned I mainly do concierge work but I also clean chalets as well.
2. I read that some activities you choose require you to do a 2-day course? Is that just for professional regulated activities?
3. My annual gross income is around 30 000 euros, Should I opt for the final discharge payment option? ( option versament libatoire ) and what are the implications of choosing this option? from my understanding is paying the tax at the same time as my social security but at a fixed rate of around 2 percent depending on activity.
4. I also have been renting out a room on Airbnb, are there any implications with this on business setup or do you have some other advice?

Thanks a lot
I really appreciate it
-tyron