Yep. I'm still figuring this out myself... but for me it has helped to work on my self esteme. Cognitive Behavioral Therapy is very helpful- you might want to google it.
This is not a death sentence unless you choose to make it one. Also, suffering from dysthymia does not necessarily mean you will always suffer from depression, you may have been suffering from a long standing depression because you had not received the right treatment. If you are successfully treated with the right medications, and learn a new way of thinking, and learn to recognize your triggers more readily, then stats are on your side.