I'm basically pretty rich and here's what works for me.
Keep driving your old vehicle.
Keep living in your old house.
Keep working and making money.
Keep living like a king at home.
Keep humble bragging about being rich.
You’re actually on point, I read a book called the millionaire next door at the request of my CFP a lot of years ago. They pulled together a huge group of millionaires they managed money for and asked a series of questions. Most popular watch, Timex. Age of your vehicle, 8-10 years. Favorite beer, cheap domestic.
Basically a lot of millionaires work hard and spend little and it adds up, but they never really “lived like a millionaire”