I do not know your background story, all I have read is these two posts. If I may make some comments/suggestions there might be something among the points that are useful to you.
First off, please trust your self and do not rely on any of the doctors to work it out. I don't mean to take on the responsibility for choosing the right medication for yourself, I mean trust your self enough to write down the responses your body has to each medication. If it is written in a clinical way, the doctor/doctors will be more likely to read it and respect it.
Make a chart up, use a scrapbook, an exercise book or a document on your computer and set it up with the date and the dosage of each medication and your physical sensations and symptoms then your psychological state.
Make it a habit to fill it out every day or twice a day. For example, write descriptive words such as " Mentally clouded or sensation of fogginess" rather than "feeling cloudy in my head".
Keep this log for your own benefit and check back on it, also take it with you to all doctor's appointments.
I am not a doctor, but I do understand a little about which type of anti-depressant is used for which symptom of illness. I do not understand why a dopamine antagonist was give to you.
In my experience, an SSRI is first used, then an SNRI added later if a state of coping has not been reached. Ask your doctor about SNRI's (Pristiq, Edronax, Effexor) if you feel unmotivated and unable/unwilling to move much or talk much. The N in SNRI is for noradrenaline. This is the motivating hormone.
I personally take 100g of Pristiq and 4mg of Edronax. Pristiq is a slow release anti-depressant. Effexor is the same type of drug but is not slow release and can be a bit "of a hit" compared to Pristiq.
Secondly, when I am experiencing a prolonged bout of depression, the meds will not work unless I make my body "make" some serotonin. This can only be done through movement. For me, it works best if I walk. So I get dropped to a coffee shop and walk home or catch a train somewhere and walk home. In the sun with comfortable shoes on. This works for me. Gyms freak me out and so does organised exercise.
A simple but often forgotten thing to add, make sure you are drinking water when you take your meds and keep water with you to drink for at least a few hours afterwards. They cannot work if you are pooping them out or dehydrated.
The rhythm of the walking also helps with anxiety. Try to walk long enough to get a little sweaty when you are home. Drips of sweat are a good sign.
I hope some of this helps. Do not ever "Cold Turkey" stop taking any medication. I did once and got fibromyalgia from doing so. Your post does mention many aspects of questioning the medication you are on, so its very possible your gut is telling you it is not the right fit with you. Trust your gut and ring your psychiatrist. Write down the points you made in these posts and repeat them to him. Tell him you are concerned. He needs to know, that is what you are paying him for, his support and his feedback.
I know it is hard to fight. Do it gently and calmly so it does not stir up your emotions and make you feel upset. :)
