Depression can cause one to develop an irrational or pessimistic attitude. You can’t break out of this mind frame by telling yourself to “cheer up”, which is the worst anti-depression advice.
Once you start to identify the destructive thoughts, you may challenge them with alternative approaches to the thoughts. For example, if you had identified a possible trigger of depression, instead of thinking of ways to combat it, think of how you would see the trigger if depression was not a factor.
Logical reasoning is widely applied and valued. This kind of reasoning sometimes is referred to as top-down thinking or moving from the general to the specifics. Through this thought process, you’ll develop a more balanced perspective and help to relieve your depression.
Last but not least, do not ever despair if the above advice doesn’t work. Seek help from a mental health professional and be open about how you’re feeling as well as your symptoms. While depression can be a devastating disorder, even the most severe cases are treatable.