I'm thinking the IKEA sink I built isn't working out logistically,
Don't ever give up.....
Building it and changing it are part of the fun.
We would (and still do sometimes) sit out in the GMC and brainstorm how things would work and where different stuff needed to be. We took some short trips and actually set up camp in the driveway a couple of times to see what worked and what was a hassle. What we really needed and what we didn't. Talked about and planned what it would be like to be stuck inside all day on a rainy or stormy day. Came in handy too. We were caught in a tropical storm in Florida a few years back and were inside the van camped at the beach for about 3 days. The wind and rain destroyed our EZ-up and a lot of our camp gear.
Last year we spent 30 straight nights in the van during a trip out to Oregon and back. It was a great trip.
It's a very small space and that much togetherness is not for everybody.
Our number one: Don't take stuff with you that you don't need. This can sometimes take a little trial and error. And whatever it is, when you are finished with it, put it back in it's place. Otherwise you end up stepping over it.
And if you're someplace you're not happy, never forget what Sally said to Burt in Smokey and the Bandit:
"Does this thing move?"https://www.youtube.com/watch?v=DU5VSIcNsQU