SMH - You should stick with the anti-depressants.
My psychiatrist changed my antidepressant from Citalopram to Imipramine about 4 weeks ago and I am having similar problems to you. I feel like a Zombie looking at the world through a steamed up window..
I was told that my medication would take several weeks to kick in properly and I am willing to give it a chance.
Don't listen to people who say "antidepressants are addictive" - they aren't, but if you come off them quickly your body will miss the changes that it has made to your body chemistry . Your doctor thinks that these tablets will help you feel better - give them a chance. They will help you get better by giving you a more positive attitude, it is not an instant fix.
My psychiatrist advised me to try these omega 3 tablets. I take 2 per day - they are not cheap but they did help me.
http://www.healthyandessential.co.uk/shop/
Depression is NOT a sign of weakness - it takes a strong person to crawl back to normality. Talk to people about it as you would do if you had Asthma or a broken leg. It will amaze you how many lives have been affected by this horrible illness.
There is light at the end of the tunnel .... somewhere.