I have been taking Effexor for about 6 months. I took zoloft for ...

I have been taking Effexor for about 6 months. I took zoloft for about 5 years and it worked great for my depression, but eventually caused my sex drive to be non-existent. My doctor then put me on Celexa which made me VERY tired and also gain weight. Now I am on Effexor, and it seems to work fine for my depression, but I too have noticed that if my dosage is even a little past 24hrs, I get very agitated about everything. If its more that a few hours past that time, I actually begin to feel physically ill, with stomach aches, dizziness, inability to concentrate. My doctor did not tell me about this effect of the drug, he actually told me that I would experience less dizziness when coming off this drug, as compared to other SSRIs such as zoloft. I now am deathly afraid to run out and I am sure to be at the pharmacy before I run out of pills due to how horrible I feel even after a few hours of a missed dose. I do not like being a slave to any medication, especially since I am a recovering addict. I feel I need something for my depression, but I am getting really tired of all the drugs and their side effects. I am afraid to go off them entirely but feel it can't be any worse than the withdrawls, which they don't tell you about when prescribing these drugs. They are advertised as being"not addicting" but I have found that they actually change the chemistry of your brain to the point where you cannot function normally without them, especially after years of taking these drugs...will try to slowly wean myself off of the 75 mg effexor and start from square one..anyone who has any tips for successful withdrawl from this drug, I am open to any suggestions, Thanks.