I think it would be wise to see your family physician and see what he thinks. There are many options available including councelling that a lot of people benefit from. Depression is started because of chemical imbalance in the brain. Stress, not eating properly, events that are currently taking place in your life, family dynamics etc etc, will affect how you feel over all. I think before making the decision on your own to start taking a medication you should have a good chat with the GP that follows you.
Nothing ever comes easy does it :) Good Luck :)