Regardless of how popular or loved they are, they don't feel like they belong. They feel that everything will be the same with or without them, and no one will miss them. They feel isolated and all alone. They have no vision of a brighter future. I think not.
Some people feed their depression.
Instead of dealing with it in positive ways, they make it worse through self-pity, withdrawal, pessimism, and anger. They begin to think of themselves as worthless, useless, and unimportant. Elijah had just faced an entire nation, challenging them to turn to God and leave Baal. The prophet thought the situation was hopeless. He was wrong.