Have you heard of crab mentality? It's when crabs are put into a bucket and when one tries to climb to freedom, the others pull it back in. Due to crab's selfish nature they not only doom themselves but every other crab around them. We act similarly to crabs by justifying greedy, self serving nature in order to take care of ourselves, but as you can see with with the crabs, they never get out. How can you fix this? First, realize you're not a crab and second, that you're not in a bucket. Then go for a walk and give someone a hug. I'll leave you with a quote.
"Self-absorption in all its forms kills empathy, let alone compassion. When we focus on ourselves, our world contracts our problems and preoccupations loom large. But when we focus on others, our world expands. Our own problems drift to the periphery of the mind and so seem smaller, and we increase our capacity for connection - or compassionate action." - Daniel Goleman