The resources needed to satisfy all the want of human being are said not to be enough compared to all the want of humans we have many want we would like to satisfy at any given point in time which we may not be able to meet up with due to economic problems scales of preference simple is setting our needs inorder of priority.
You're never going to get everything you want in life but if you find a reasonable balance then you can sure be happy. Even Billionaires, who you might imagine have access to many things in life, may still be missing certainty in some areas of life - like do their friends like them as a person or just because of the monetary possibilities of being connected to them and whether the love of their life is genuine or again, just related to their bank account. You need to learn to keep trying hard and take in every little moment of joy that you can, often you can get those moments of joy by doing things for other people as well - not expecting anything in return. Scarcity is real, so make the most of what you've got.