Good for you for deciding to do something about your depression hun! Well, When I started I went to see a counceller/phyciatrist just to see how bad I'm at and what they think I should do about it. Also, talking to family and friends is a good way to get support, cuz this whole thing is about getting support, and its vitally important that u feel important.. and getting support, definatly helps. Then I would go and see a doctor, and see if he/she should prescribe you medication. Also, going to see a counceller can be expensive, so if u have coverage, and they suggest a phyciatrist, it would give u ur money back. Also.. CBT is a good way to start.. because depression is just u thinking negatively about everything, so CBT is a good way to start. If you ever need to talk! I'll be here to listen, and good for u for deciding ur worth more, cuz u definatly are :)
Good Luck and Peace be with you!