One of the many things I thank the Army for is to understand the importance of PMCS or Preventive Maintenance Checks and Services.
Also, I have learned to stay away from Camping World, if possible.
I strongly recommend reviewing RV Repair/Maintenance videos on youtube.com. They teach us all a lot that we need to know.
We have dear friends that purchased a 2018 Thor. When something went wrong, they took it in for service expecting the NEW CAR experience. Well, IT JUST AIN'T SO. RVs are different.
Get familiar with your systems and have FUN!