If you want to improve your depression and clarify your thoughts, I recommend practicing awareness meditation for 15 minutes every morning and/or evening. After a few weeks, the results can be dramatic.
Not sure if I can describe it well, but it's like taking a running car out of gear and just letting it coast. As thoughts enter and threaten the moment, just say "hi" and let them pass right through, rather than dwell on them.
Getting all the buzzing bees to quiet down for a few minutes is wonderful.