As you know, both external (like financial troubles and unemployment)  and internal factors (such as genetic vulnerability)  eventuate in depression. Depression really erodes your soul, you ignore your blessings, to you, everything is lackluster and can be considered as a delimma, you are susceptible to people 's critics.
To me the best way to flee from this monster, is to take life easy,not to be fussy over trivial things and on the top of that, look at this world as a transient phase....