For starts ((BIG HUG)), you have had a rough year! Good for you with reaching out...depression affects everyone differantly, as do the medications used to treat it. I have suffered from depression for a long time and want to suggest that you mention it to your doctor. Only you know what is best for you, and it never hurts to ask.
I've used two different medications...the 1st one I developed hives after 2 weeks and quit taking it, and with the 2nd med I didn't feel it made a differance so I stopped taking it after a year. Remember, not every medication is effective with each person..which is disapointing, but it's life. After wondering why I can't shake this feeling of sadness that never seems to go away, I'm going to see the doctor on Monday about starting another perscription maybe. Ohhh, and I never had weight gain with either medication.
Main Point: You've had a heck of a year, and you are hurting. Sometimes eating great, exercising, getting a ton of sleep and turning to prayer aren't enough. Medication can't undo the things that have happened this year, but it can make each day seem a little more livable, and give you a feeling that you can manage life. Never be afraid to ask for help