How frugal can ordinary people be in order to buy a house?

To what extent can ordinary people be frugal in order to buy a house? Because buying a house will cost a lot of money, many families can't afford it, so they will pay down first and then borrow money, so the money of this loan must be saved. For example, try to wash clothes by hand, don't buy so many clothes, just wear enough, and try not to buy new clothes. I want to buy cosmetics, not jewelry. I seldom go out to eat with others. I rarely even make phone calls. Try to cook by yourself and don't buy takeout. The water and electricity at home are very economical. Turn off the TV without watching it, learn to turn off the lights and save water.