It's not really ours to begin with. So we need to be generous and helpful and considerate of others. These are traits praised by God. Those who overcome their natural stinginess are the successful ones. Whatever you give to charity, God is fully aware thereof.
Impatience is a very common human tendency.
But God cautions us to develop patience. Clearly it's some-thing we need to observe, and that means we will have to work hard to overcome our natural inclination. How we can be unappreciative of all God has given us is a mystery. But we are. But we have to try.