^This is interesting! I agree that the placebo study may be true for SOME, but definitely not all. Our minds can do amazing things when we think we are taking something but truly are not, but this doesn't happen with everyone.
I stopped taking Prozac for a bit and decided to go back on it. My energy level wasn't really any better, and I was still forgetful, so to be honest, I think I just felt that way from a stressful, event-packed year. I did get married this past December and planning was pretty exhausting. I think I kept trying to make it all seem like not a big deal, but it really did wear me out. When I stopped taking Prozac, I noticed that I did feel a bit sadder. I felt bothered more easily and very lonely. My anxiety was a little worse too. I decided to take it again, and while it isn't a complete 100% cure for me, it's very helpful. I feel happier and don't get sad about little things as much. Things just don't bother me as much as before. I still get really anxious in certain situations (I get very, very nervous to have strangers very close to me, like in a grocery store), so I take Xanax during certain times if I need something extra.
It's tricky to find the right meds/treatment, but I think first off it's so important to identify any causes that may be making anxiety or depression worse. Is there any medical reason or anything going on in your life? For me, I think it really was just the stress. Stress can do so much to you. A healthy, clean diet always helps me too, as well as a good exercise program. I feel a million times better when I'm working out regularly. I also know some people who swear by Vitamin B complexes. I notice that certain low or no sugar energy drinks with a good amount of Vitamin B make me feel wonderful... the energy boost from the caffeine, plus the vitamins, seems to enhance my mood for the short term. I just don't want to get hooked on too much caffeine!