I don't get it. I really don't.
People, in general, like two things:
1) Instant results
This I get. and this you will get instant results from these kinds of meds. When they first came out on the market, they pushed them for depression. Granted, they work great for that. We have, however, since then realized there are better ways to deal with the situation. So now we give people SSRI's because they're generally "safer" and less addictive (Don't let anyone tell you that the withdrawal doesn't suck, though. Back off them slowly...) The downside is that the SSRI's take a while (4-6 weeks) for full effectiveness if you're going to get any results from that particular agent at all.
2) The feeling that bad things are not their own fault in the least
So if someone has a stressful work life, rather than admit that they have a bad job and get out they try to get drugs to dull the stress. It's easier and offers cognitive disassociation.
This one needs to be smashed with a stick and nuked from orbit. No it's no all your fault (at least I hope it's not), but people need to learn personal responsibility in this world. I think that's the general sentiment around here, though, so no need to preach to the choir.
Which is not to say that everyone taking such medication is taking the easy way and don't actually need it. Personally, I'm on my fifth anti-depressant medication regimen (which is actually a combination of two meds I tried in the past individually), have briefly visited a psych ward in the past, and seen a handful of therapists/counselors. There is nothing majorly wrong in my life, I just hate myself indiscriminately without the medication (with the medication I only somewhat hate myself.)
I'm no psychiatrist and I've never met you, so I can't diagnose you. I am, however, glad that you're getting help from at least one. That sounds like it fits the bill for Major Depressive Disorder. The good news is that there are A LOT of options. The bad news is that sometimes it can take a while to find one that sticks. The interesting thing about a lot of those drugs is that in addition to taking the taking a bit of the edge off the depression is that they increase the plasticity of the brain. So, combined with Cognitive Behavioral Therapy, they can help change the way you think about yourself. If you find that the medication alone just isn't cutting it and you're not already getting CBT, I would ask your doctor to recommend a therapist. Regardless, good luck with it and I hope you do find some kind of therapy (pharmaceutical or otherwise) that works.