A lot of things have to go wrong to bring one to the point of saying “I hate my life”. Some of the circumstances are forced upon you. Other times it’s one’s own decisions that take you to rock bottom. Most often it’s a combination of both.
The opening line to Leo Tolstoy’s Anna Karenina is “all happy families are alike; each unhappy family is unhappy in its own way”. The phrase is relevant because a slightly different wording can be applied to individuals as well: