There's a saying that don't spend money that is bigger than your salary, which is very true for you to have something in your savings.
You are right, we must be able to limit ourselves, we must always be able to adjust our expenses so that they are not excessive and must be according to our abilities, being too extravagant is not good but being too frugal is also not good.
No matter how rich we are, if we do not have good and wise planning skills, then the wealth that we have unconsciously will run out quickly.
But even though we are someone who is rich and a good planner, we are not necessarily protected from disasters that can bankrupt us.
So we really have to plan everything as best we can and wisely and always be grateful for what we have now, and if we can have a simple lifestyle that's even better. Whether we will succeed or not later depends on the decree that God has given us.
I want to add a saying "the best plan we have is not better than God's plan"