Reasons for depression?

I'm 30. I started dealing with depression around age 14. I tried to avoid all sorts of shrinks and antidepressants for most of these years and it's left me where I am today... still depressed, broke, and with very few friends. Depression can take a huge toll on you. There are many different levels of depression. If you still feel like this after more than a few months.. I would suggest talking to a nice friendly shrink. Either way keep your head up! Depression doesn't define who you are or what your life will be like... You Do! Good Luck :)