If we know how difficult it is to earn money, of course we will be very good at managing how we spend the money we have. Enjoying income is a natural thing for people who have it, but we have to do it for the right things and don't use it for things that are not necessary. You are right, without looking for it, money will not come by itself. We have to try to do work to earn income and even when working, we have limitations. We must still think about our health so that we don't do too much work with the aim of making a lot of money so that we get sick.
We spend money without worrying of how it is earned because they money we spend are not earned by us but that money comes from our parents therefore we cannot understand its value. But when we Initiating earning by ourselves then we think about every single penny because then we understand that how we worked hard day and night to make wealth. Our wishes are fulfilled with the money that our parents gives us but with our own incomes we are completing our needs only and then forget about our wishes.
I think no one think about his self when they are earning because everyone consider money sweeter than their health but I think health should be first priority because you can earn money anytime but once you loss health it cannot be same as previous. Therefore try to earn money but not work for it 24 hours as you also have to give time to your health, also manage your expenses according to your income.