You're sooooooooooooooooo not alone! Not in the slightest!
I have a family of 4, but no pets in a very similar camper (Sabre 36QBOK). I actually am not enthusiastic about the living room layout. But it works well for us.
First, check out the Fulltime Families
organization. It was started by a family of 6 and 2-3 pets 6 or 7 years ago when they went fulltime. They're still on the road and are great people. They also host a Facebook group of the same name of about 10,000 who are either families who live in RVs, used to live in RVs, or want to live in RVs. It's a great group.
There are even spin off groups for LARGE families (think 6+ kids).
Being fulltime- there are a lot of families who are stationary (like you describe) and a lot of families who travel.
What are you concerned about?